641426152 has 16 divisors (see below), whose sum is σ = 1206596160. Its totient is φ = 319667184.

The previous prime is 641426143. The next prime is 641426179. The reversal of 641426152 is 251624146.

It is a happy number.

641426152 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 2×641426152² = 822855016939054208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128128 + ... + 133039.

It is an arithmetic number, because the mean of its divisors is an integer number (75412260).

Almost surely, 2^641426152 is an apocalyptic number.

It is an amenable number.

641426152 is a deficient number, since it is larger than the sum of its proper divisors (565170008).

641426152 is a wasteful number, since it uses less digits than its factorization.

641426152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261480 (or 261476 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 641426152 is about 25326.3924000241. The cubic root of 641426152 is about 862.4135159941.

The spelling of 641426152 in words is "six hundred forty-one million, four hundred twenty-six thousand, one hundred fifty-two".