432055621 has 12 divisors (see below), whose sum is σ = 456142752. Its totient is φ = 408431144.

The previous prime is 432055579. The next prime is 432055633. The reversal of 432055621 is 126550234.

It is not a de Polignac number, because 432055621 - 2⁹ = 432055109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 432055621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432055691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1030950 + ... + 1031368.

It is an arithmetic number, because the mean of its divisors is an integer number (38011896).

Almost surely, 2^432055621 is an apocalyptic number.

It is an amenable number.

432055621 is a deficient number, since it is larger than the sum of its proper divisors (24087131).

432055621 is an equidigital number, since it uses as much as digits as its factorization.

432055621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 432055621 is about 20785.9476810657. The cubic root of 432055621 is about 755.9850720950.

The spelling of 432055621 in words is "four hundred thirty-two million, fifty-five thousand, six hundred twenty-one".