431856012 has 54 divisors (see below), whose sum is σ = 1173549972. Its totient is φ = 123243456.

The previous prime is 431856011. The next prime is 431856013. The reversal of 431856012 is 210658134.

It is an interprime number because it is at equal distance from previous prime (431856011) and next prime (431856013).

It is not an unprimeable number, because it can be changed into a prime (431856011) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 503488 + ... + 504344.

Almost surely, 2^431856012 is an apocalyptic number.

431856012 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431856012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (586774986).

431856012 is an abundant number, since it is smaller than the sum of its proper divisors (741693960).

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

431856012 is an equidigital number, since it uses as much as digits as its factorization.

431856012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 431856012 is about 20781.1455892114. The cubic root of 431856012 is about 755.8686328669.

The spelling of 431856012 in words is "four hundred thirty-one million, eight hundred fifty-six thousand, twelve".