431427528 has 96 divisors (see below), whose sum is σ = 1405684800. Its totient is φ = 116774784.

The previous prime is 431427517. The next prime is 431427541. The reversal of 431427528 is 825724134.

It is a happy number.

It is a super-2 number, since 2×431427528² = 372259423832381568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 431427492 and 431427501.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12951 + ... + 32102.

It is an arithmetic number, because the mean of its divisors is an integer number (14642550).

Almost surely, 2^431427528 is an apocalyptic number.

It is an amenable number.

431427528 is an abundant number, since it is smaller than the sum of its proper divisors (974257272).

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

431427528 is a wasteful number, since it uses less digits than its factorization.

431427528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45091 (or 45084 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 431427528 is about 20770.8335894350. The cubic root of 431427528 is about 755.6185612523.

The spelling of 431427528 in words is "four hundred thirty-one million, four hundred twenty-seven thousand, five hundred twenty-eight".