616452972 has 12 divisors (see below), whose sum is σ = 1438390296. Its totient is φ = 205484320.

The previous prime is 616452961. The next prime is 616452973. The reversal of 616452972 is 279254616.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (616452973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25685529 + ... + 25685552.

It is an arithmetic number, because the mean of its divisors is an integer number (119865858).

Almost surely, 2^616452972 is an apocalyptic number.

It is an amenable number.

616452972 is an abundant number, since it is smaller than the sum of its proper divisors (821937324).

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

616452972 is a wasteful number, since it uses less digits than its factorization.

616452972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51371088 (or 51371086 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 616452972 is about 24828.4709960158. The cubic root of 616452972 is about 851.0726812553.

The spelling of 616452972 in words is "six hundred sixteen million, four hundred fifty-two thousand, nine hundred seventy-two".