641583452 has 24 divisors (see below), whose sum is σ = 1131253200. Its totient is φ = 318378240.

The previous prime is 641583427. The next prime is 641583463. The reversal of 641583452 is 254385146.

It is a congruent number.

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, 335483 + ... + 337389.

It is an arithmetic number, because the mean of its divisors is an integer number (47135550).

Almost surely, 2^641583452 is an apocalyptic number.

It is an amenable number.

641583452 is a deficient number, since it is larger than the sum of its proper divisors (489669748).

641583452 is a wasteful number, since it uses less digits than its factorization.

641583452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501 (or 2499 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The square root of 641583452 is about 25329.4976657651. The cubic root of 641583452 is about 862.4840081611.

The spelling of 641583452 in words is "six hundred forty-one million, five hundred eighty-three thousand, four hundred fifty-two".