64123488 has 240 divisors, whose sum is σ = 222835536. Its totient is φ = 17832960.

The previous prime is 64123487. The next prime is 64123513. The reversal of 64123488 is 88432146.

64123488 is a `hidden beast` number, since 641 + 2 + 3 + 4 + 8 + 8 = 666.

It is a super-2 number, since 2×64123488² = 8223643426572288, 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 (64123483) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 370570 + ... + 370742.

Almost surely, 2^64123488 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 64123488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111417768).

64123488 is an abundant number, since it is smaller than the sum of its proper divisors (158712048).

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

64123488 is a wasteful number, since it uses less digits than its factorization.

64123488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 202 counting only the distinct ones).

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

The square root of 64123488 is about 8007.7142806172. The cubic root of 64123488 is about 400.2571013785.

The spelling of 64123488 in words is "sixty-four million, one hundred twenty-three thousand, four hundred eighty-eight".