431340012 has 24 divisors (see below), whose sum is σ = 1118289200. Its totient is φ = 143779968.

The previous prime is 431339977. The next prime is 431340047. The reversal of 431340012 is 210043134.

It is an interprime number because it is at equal distance from previous prime (431339977) and next prime (431340047).

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1996837 + ... + 1997052.

Almost surely, 2^431340012 is an apocalyptic number.

It is an amenable number.

431340012 is an abundant number, since it is smaller than the sum of its proper divisors (686949188).

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

431340012 is a wasteful number, since it uses less digits than its factorization.

431340012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3993902 (or 3993894 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 431340012 is about 20768.7267785004. The cubic root of 431340012 is about 755.5674648482.

Adding to 431340012 its reverse (210043134), we get a palindrome (641383146).

The spelling of 431340012 in words is "four hundred thirty-one million, three hundred forty thousand, twelve".