431813432 has 8 divisors (see below), whose sum is σ = 809650200. Its totient is φ = 215906712.

The previous prime is 431813429. The next prime is 431813441. The reversal of 431813432 is 234318134.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 431813395 and 431813404.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 26988332 + ... + 26988347.

It is an arithmetic number, because the mean of its divisors is an integer number (101206275).

Almost surely, 2^431813432 is an apocalyptic number.

It is an amenable number.

431813432 is a deficient number, since it is larger than the sum of its proper divisors (377836768).

431813432 is a wasteful number, since it uses less digits than its factorization.

431813432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53976685 (or 53976681 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 431813432 is about 20780.1210776068. The cubic root of 431813432 is about 755.8437897530.

The spelling of 431813432 in words is "four hundred thirty-one million, eight hundred thirteen thousand, four hundred thirty-two".