444431312 has 40 divisors (see below), whose sum is σ = 929044704. Its totient is φ = 204741504.

The previous prime is 444431311. The next prime is 444431321. The reversal of 444431312 is 213134444.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444431311) 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, 132083 + ... + 135405.

Almost surely, 2^444431312 is an apocalyptic number.

It is an amenable number.

444431312 is an abundant number, since it is smaller than the sum of its proper divisors (484613392).

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

444431312 is a wasteful number, since it uses less digits than its factorization.

444431312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987 (or 3981 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 444431312 is about 21081.5396022207. The cubic root of 444431312 is about 763.1353118468.

Adding to 444431312 its reverse (213134444), we get a palindrome (657565756).

The spelling of 444431312 in words is "four hundred forty-four million, four hundred thirty-one thousand, three hundred twelve".