641402616 has 32 divisors (see below), whose sum is σ = 1604154240. Its totient is φ = 213714528.

The previous prime is 641402603. The next prime is 641402651. The reversal of 641402616 is 616204146.

641402616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×641402616² = 822794631623286912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88855 + ... + 95801.

It is an arithmetic number, because the mean of its divisors is an integer number (50129820).

Almost surely, 2^641402616 is an apocalyptic number.

It is an amenable number.

641402616 is an abundant number, since it is smaller than the sum of its proper divisors (962751624).

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

641402616 is a wasteful number, since it uses less digits than its factorization.

641402616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10803 (or 10799 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 641402616 is about 25325.9277421381. The cubic root of 641402616 is about 862.4029676181.

The spelling of 641402616 in words is "six hundred forty-one million, four hundred two thousand, six hundred sixteen".