616646032 has 40 divisors (see below), whose sum is σ = 1266715800. Its totient is φ = 289800192.

The previous prime is 616646003. The next prime is 616646039. The reversal of 616646032 is 230646616.

It can be written as a sum of positive squares in 4 ways, for example, as 153363456 + 463282576 = 12384^2 + 21524^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (616646039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382444 + ... + 384052.

It is an arithmetic number, because the mean of its divisors is an integer number (31667895).

Almost surely, 2^616646032 is an apocalyptic number.

It is an amenable number.

616646032 is an abundant number, since it is smaller than the sum of its proper divisors (650069768).

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

616646032 is a wasteful number, since it uses less digits than its factorization.

616646032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3043 (or 3037 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 616646032 is about 24832.3585669988. The cubic root of 616646032 is about 851.1615179547.

The spelling of 616646032 in words is "six hundred sixteen million, six hundred forty-six thousand, thirty-two".