616465400 has 24 divisors (see below), whose sum is σ = 1433282520. Its totient is φ = 246586080.

The previous prime is 616465391. The next prime is 616465457. The reversal of 616465400 is 4564616.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1540964 + ... + 1541363.

It is an arithmetic number, because the mean of its divisors is an integer number (59720105).

Almost surely, 2^616465400 is an apocalyptic number.

It is an amenable number.

616465400 is an abundant number, since it is smaller than the sum of its proper divisors (816817120).

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

616465400 is a wasteful number, since it uses less digits than its factorization.

616465400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082343 (or 3082334 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 616465400 is about 24828.7212719463. The cubic root of 616465400 is about 851.0784005670.

The spelling of 616465400 in words is "six hundred sixteen million, four hundred sixty-five thousand, four hundred".