431431032 has 64 divisors (see below), whose sum is σ = 1144281600. Its totient is φ = 135083520.

The previous prime is 431431031. The next prime is 431431051. The reversal of 431431032 is 230134134.

It is a super-2 number, since 2×431431032² = 372265470745170048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431431031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349857 + ... + 351087.

It is an arithmetic number, because the mean of its divisors is an integer number (17879400).

Almost surely, 2^431431032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431431032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572140800).

431431032 is an abundant number, since it is smaller than the sum of its proper divisors (712850568).

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

431431032 is a wasteful number, since it uses less digits than its factorization.

431431032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116 (or 2112 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 431431032 is about 20770.9179383098. The cubic root of 431431032 is about 755.6206069263.

Adding to 431431032 its reverse (230134134), we get a palindrome (661565166).

The spelling of 431431032 in words is "four hundred thirty-one million, four hundred thirty-one thousand, thirty-two".