444704690 has 16 divisors (see below), whose sum is σ = 842598720. Its totient is φ = 168519600.

The previous prime is 444704677. The next prime is 444704693. The reversal of 444704690 is 96407444.

It is a happy number.

It is a super-2 number, since 2×444704690² = 395524522615992200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (444704693) 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, 1170086 + ... + 1170465.

It is an arithmetic number, because the mean of its divisors is an integer number (52662420).

Almost surely, 2^444704690 is an apocalyptic number.

444704690 is a deficient number, since it is larger than the sum of its proper divisors (397894030).

444704690 is a wasteful number, since it uses less digits than its factorization.

444704690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340577.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 444704690 is about 21088.0224298060. The cubic root of 444704690 is about 763.2917527020.

The spelling of 444704690 in words is "four hundred forty-four million, seven hundred four thousand, six hundred ninety".