641875404 has 48 divisors (see below), whose sum is σ = 1578416000. Its totient is φ = 202455936.

The previous prime is 641875379. The next prime is 641875411. The reversal of 641875404 is 404578146.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376947 + ... + 378645.

Almost surely, 2^641875404 is an apocalyptic number.

It is an amenable number.

641875404 is an abundant number, since it is smaller than the sum of its proper divisors (936540596).

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

641875404 is a wasteful number, since it uses less digits than its factorization.

641875404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3382 (or 3380 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 641875404 is about 25335.2600933955. The cubic root of 641875404 is about 862.6148125252.

The spelling of 641875404 in words is "six hundred forty-one million, eight hundred seventy-five thousand, four hundred four".