641442524 has 12 divisors (see below), whose sum is σ = 1148629944. Its totient is φ = 313262544.

The previous prime is 641442493. The next prime is 641442533. The reversal of 641442524 is 425244146.

It is a super-2 number, since 2×641442524² = 822897023190981152, 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 3 ways as a sum of consecutive naturals, for example, 1864487 + ... + 1864830.

It is an arithmetic number, because the mean of its divisors is an integer number (95719162).

Almost surely, 2^641442524 is an apocalyptic number.

It is an amenable number.

641442524 is a deficient number, since it is larger than the sum of its proper divisors (507187420).

641442524 is a wasteful number, since it uses less digits than its factorization.

641442524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3729364 (or 3729362 counting only the distinct ones).

The product of its digits is 30720, while the sum is 32.

The square root of 641442524 is about 25326.7156180978. The cubic root of 641442524 is about 862.4208534529.

The spelling of 641442524 in words is "six hundred forty-one million, four hundred forty-two thousand, five hundred twenty-four".