431857452 has 24 divisors (see below), whose sum is σ = 1085180656. Its totient is φ = 132879168.

The previous prime is 431857423. The next prime is 431857501. The reversal of 431857452 is 254758134.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 431857452.

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, 1384003 + ... + 1384314.

Almost surely, 2^431857452 is an apocalyptic number.

It is an amenable number.

431857452 is an abundant number, since it is smaller than the sum of its proper divisors (653323204).

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

431857452 is a wasteful number, since it uses less digits than its factorization.

431857452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768337 (or 2768335 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 431857452 is about 20781.1802359731. The cubic root of 431857452 is about 755.8694730000.

The spelling of 431857452 in words is "four hundred thirty-one million, eight hundred fifty-seven thousand, four hundred fifty-two".