61423488 has 128 divisors (see below), whose sum is σ = 207264000. Its totient is φ = 17542656.

The previous prime is 61423487. The next prime is 61423507. The reversal of 61423488 is 88432416.

61423488 is a `hidden beast` number, since 614 + 2 + 34 + 8 + 8 = 666.

61423488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×61423488² = 7545689756172288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61423487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22923 + ... + 25461.

It is an arithmetic number, because the mean of its divisors is an integer number (1619250).

Almost surely, 2^61423488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61423488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103632000).

61423488 is an abundant number, since it is smaller than the sum of its proper divisors (145840512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61423488 is a wasteful number, since it uses less digits than its factorization.

61423488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569 (or 2551 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 61423488 is about 7837.3138255400. The cubic root of 61423488 is about 394.5585796860.

The spelling of 61423488 in words is "sixty-one million, four hundred twenty-three thousand, four hundred eighty-eight".