431142444 has 18 divisors (see below), whose sum is σ = 1089832380. Its totient is φ = 143714136.

The previous prime is 431142427. The next prime is 431142461. The reversal of 431142444 is 444241134.

It is an interprime number because it is at equal distance from previous prime (431142427) and next prime (431142461).

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5988054 + ... + 5988125.

Almost surely, 2^431142444 is an apocalyptic number.

It is an amenable number.

431142444 is an abundant number, since it is smaller than the sum of its proper divisors (658689936).

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

431142444 is a wasteful number, since it uses less digits than its factorization.

431142444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11976189 (or 11976184 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 431142444 is about 20763.9698516445. The cubic root of 431142444 is about 755.4520889300.

Adding to 431142444 its reverse (444241134), we get a palindrome (875383578).

The spelling of 431142444 in words is "four hundred thirty-one million, one hundred forty-two thousand, four hundred forty-four".