641616032 has 24 divisors (see below), whose sum is σ = 1284595200. Its totient is φ = 315369664.

The previous prime is 641616007. The next prime is 641616043. The reversal of 641616032 is 230616146.

It is a happy number.

It is a super-2 number, since 2×641616032² = 823342265038850048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641615986 and 641616004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168032 + ... + 171807.

It is an arithmetic number, because the mean of its divisors is an integer number (53524800).

Almost surely, 2^641616032 is an apocalyptic number.

It is an amenable number.

641616032 is an abundant number, since it is smaller than the sum of its proper divisors (642979168).

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

641616032 is a wasteful number, since it uses less digits than its factorization.

641616032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339908 (or 339900 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 641616032 is about 25330.1407812906. The cubic root of 641616032 is about 862.4986070691.

The spelling of 641616032 in words is "six hundred forty-one million, six hundred sixteen thousand, thirty-two".