641374084 has 24 divisors (see below), whose sum is σ = 1209878208. Its totient is φ = 295740960.

The previous prime is 641374081. The next prime is 641374109. The reversal of 641374084 is 480473146.

It is a super-2 number, since 2×641374084² = 822721431253678112, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (641374081) 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, 56529 + ... + 66919.

It is an arithmetic number, because the mean of its divisors is an integer number (50411592).

Almost surely, 2^641374084 is an apocalyptic number.

It is an amenable number.

641374084 is a deficient number, since it is larger than the sum of its proper divisors (568504124).

641374084 is a wasteful number, since it uses less digits than its factorization.

641374084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11595 (or 11593 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 641374084 is about 25325.3644396285. The cubic root of 641374084 is about 862.3901797862.

The spelling of 641374084 in words is "six hundred forty-one million, three hundred seventy-four thousand, eighty-four".