641472174 has 48 divisors (see below), whose sum is σ = 1600954368. Its totient is φ = 181830096.

The previous prime is 641472133. The next prime is 641472193. The reversal of 641472174 is 471274146.

It is a happy number.

641472174 is a `hidden beast` number, since 6 + 414 + 72 + 174 = 666.

641472174 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 2×641472174² = 822973100032572552, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4042 + ... + 36045.

It is an arithmetic number, because the mean of its divisors is an integer number (33353216).

Almost surely, 2^641472174 is an apocalyptic number.

641472174 is an abundant number, since it is smaller than the sum of its proper divisors (959482194).

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

641472174 is a wasteful number, since it uses less digits than its factorization.

641472174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40229 (or 40226 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 641472174 is about 25327.3009616106. The cubic root of 641472174 is about 862.4341414111.

The spelling of 641472174 in words is "six hundred forty-one million, four hundred seventy-two thousand, one hundred seventy-four".