431632464 has 20 divisors (see below), whose sum is σ = 1115050656. Its totient is φ = 143877472.

The previous prime is 431632457. The next prime is 431632493. The reversal of 431632464 is 464236134.

It is a super-2 number, since 2×431632464² = 372613167957422592, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4496124 + ... + 4496219.

Almost surely, 2^431632464 is an apocalyptic number.

It is an amenable number.

431632464 is an abundant number, since it is smaller than the sum of its proper divisors (683418192).

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

431632464 is a wasteful number, since it uses less digits than its factorization.

431632464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8992354 (or 8992348 counting only the distinct ones).

The product of its digits is 41472, while the sum is 33.

The square root of 431632464 is about 20775.7662674569. The cubic root of 431632464 is about 755.7381865447.

Adding to 431632464 its reverse (464236134), we get a palindrome (895868598).

The spelling of 431632464 in words is "four hundred thirty-one million, six hundred thirty-two thousand, four hundred sixty-four".