431232406 has 16 divisors (see below), whose sum is σ = 706818960. Its totient is φ = 195690880.

The previous prime is 431232401. The next prime is 431232443. The reversal of 431232406 is 604232134.

It is a super-2 number, since 2×431232406² = 371922775969097672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431232401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2311 + ... + 29458.

It is an arithmetic number, because the mean of its divisors is an integer number (44176185).

Almost surely, 2^431232406 is an apocalyptic number.

431232406 is a deficient number, since it is larger than the sum of its proper divisors (275586554).

431232406 is a wasteful number, since it uses less digits than its factorization.

431232406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32399.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 431232406 is about 20766.1360392346. The cubic root of 431232406 is about 755.5046293802.

The spelling of 431232406 in words is "four hundred thirty-one million, two hundred thirty-two thousand, four hundred six".