444515464 has 16 divisors (see below), whose sum is σ = 843509520. Its totient is φ = 219579600.

The previous prime is 444515459. The next prime is 444515531. The reversal of 444515464 is 464515444.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334062 + ... + 335389.

It is an arithmetic number, because the mean of its divisors is an integer number (52719345).

Almost surely, 2^444515464 is an apocalyptic number.

It is an amenable number.

444515464 is a deficient number, since it is larger than the sum of its proper divisors (398994056).

444515464 is a wasteful number, since it uses less digits than its factorization.

444515464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669540 (or 669536 counting only the distinct ones).

The product of its digits is 153600, while the sum is 37.

The square root of 444515464 is about 21083.5353771610. The cubic root of 444515464 is about 763.1834747523.

The spelling of 444515464 in words is "four hundred forty-four million, five hundred fifteen thousand, four hundred sixty-four".