641374326 has 24 divisors (see below), whose sum is σ = 1421963400. Its totient is φ = 208819296.

The previous prime is 641374303. The next prime is 641374381. The reversal of 641374326 is 623473146.

It is a happy number.

641374326 is a `hidden beast` number, since 641 + 3 + 7 + 4 + 3 + 2 + 6 = 666.

641374326 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 2×641374326² = 822722052103908552, 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 11 ways as a sum of consecutive naturals, for example, 413551 + ... + 415098.

It is an arithmetic number, because the mean of its divisors is an integer number (59248475).

Almost surely, 2^641374326 is an apocalyptic number.

641374326 is an abundant number, since it is smaller than the sum of its proper divisors (780589074).

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

641374326 is a wasteful number, since it uses less digits than its factorization.

641374326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828700 (or 828697 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 641374326 is about 25325.3692174468. The cubic root of 641374326 is about 862.3902882505.

The spelling of 641374326 in words is "six hundred forty-one million, three hundred seventy-four thousand, three hundred twenty-six".