444645916 has 24 divisors (see below), whose sum is σ = 914168304. Its totient is φ = 186564480.

The previous prime is 444645881. The next prime is 444645917. The reversal of 444645916 is 619546444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444645917) 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, 388105 + ... + 389248.

It is an arithmetic number, because the mean of its divisors is an integer number (38090346).

Almost surely, 2^444645916 is an apocalyptic number.

It is an amenable number.

444645916 is an abundant number, since it is smaller than the sum of its proper divisors (469522388).

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

444645916 is a wasteful number, since it uses less digits than its factorization.

444645916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777381 (or 777379 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 444645916 is about 21086.6288438906. The cubic root of 444645916 is about 763.2581246285.

The spelling of 444645916 in words is "four hundred forty-four million, six hundred forty-five thousand, nine hundred sixteen".