431214012 has 18 divisors (see below), whose sum is σ = 1090013288. Its totient is φ = 143737992.

The previous prime is 431213977. The next prime is 431214013. The reversal of 431214012 is 210412134.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×431214012² = 371891048290272288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431214013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5989048 + ... + 5989119.

Almost surely, 2^431214012 is an apocalyptic number.

It is an amenable number.

431214012 is an abundant number, since it is smaller than the sum of its proper divisors (658799276).

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

431214012 is a wasteful number, since it uses less digits than its factorization.

431214012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11978177 (or 11978172 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 431214012 is about 20765.6931500010. The cubic root of 431214012 is about 755.4938873383.

Adding to 431214012 its reverse (210412134), we get a palindrome (641626146).

The spelling of 431214012 in words is "four hundred thirty-one million, two hundred fourteen thousand, twelve".