420131432 has 32 divisors (see below), whose sum is σ = 939427200. Its totient is φ = 172227264.

The previous prime is 420131429. The next prime is 420131441. The reversal of 420131432 is 234131024.

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, 161807 + ... + 164382.

It is an arithmetic number, because the mean of its divisors is an integer number (29357100).

Almost surely, 2^420131432 is an apocalyptic number.

It is an amenable number.

420131432 is an abundant number, since it is smaller than the sum of its proper divisors (519295768).

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

420131432 is a wasteful number, since it uses less digits than its factorization.

420131432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326225 (or 326221 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 420131432 is about 20497.1078935542. The cubic root of 420131432 is about 748.9653478347.

Adding to 420131432 its reverse (234131024), we get a palindrome (654262456).

The spelling of 420131432 in words is "four hundred twenty million, one hundred thirty-one thousand, four hundred thirty-two".