444668736 has 28 divisors (see below), whose sum is σ = 1176519872. Its totient is φ = 148222848.

The previous prime is 444668671. The next prime is 444668747. The reversal of 444668736 is 637866444.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent 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, 1157800 + ... + 1158183.

Almost surely, 2^444668736 is an apocalyptic number.

It is an amenable number.

444668736 is an abundant number, since it is smaller than the sum of its proper divisors (731851136).

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

444668736 is a wasteful number, since it uses less digits than its factorization.

444668736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315998 (or 2315988 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 48.

The square root of 444668736 is about 21087.1699381401. The cubic root of 444668736 is about 763.2711816490.

The spelling of 444668736 in words is "four hundred forty-four million, six hundred sixty-eight thousand, seven hundred thirty-six".