641374954 has 16 divisors (see below), whose sum is σ = 1049962176. Its totient is φ = 291412000.

The previous prime is 641374939. The next prime is 641374973. The reversal of 641374954 is 459473146.

It is a super-2 number, since 2×641374954² = 822723663237004232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641374954.

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, 67179 + ... + 76129.

It is an arithmetic number, because the mean of its divisors is an integer number (65622636).

Almost surely, 2^641374954 is an apocalyptic number.

641374954 is a deficient number, since it is larger than the sum of its proper divisors (408587222).

641374954 is a wasteful number, since it uses less digits than its factorization.

641374954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12221.

The product of its digits is 362880, while the sum is 43.

The square root of 641374954 is about 25325.3816160784. The cubic root of 641374954 is about 862.3905697194.

The spelling of 641374954 in words is "six hundred forty-one million, three hundred seventy-four thousand, nine hundred fifty-four".