61422072 has 48 divisors (see below), whose sum is σ = 158307240. Its totient is φ = 19844928.

The previous prime is 61422019. The next prime is 61422077. The reversal of 61422072 is 27022416.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61422077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233413 + ... + 233675.

Almost surely, 2^61422072 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 61422072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79153620).

61422072 is an abundant number, since it is smaller than the sum of its proper divisors (96885168).

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

61422072 is a wasteful number, since it uses less digits than its factorization.

61422072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 61422072 is about 7837.2234879452. The cubic root of 61422072 is about 394.5555477338. Note that the first 4 decimals are identical.

Adding to 61422072 its reverse (27022416), we get a palindrome (88444488).

The spelling of 61422072 in words is "sixty-one million, four hundred twenty-two thousand, seventy-two".