444920715 has 16 divisors (see below), whose sum is σ = 790970400. Its totient is φ = 237290976.

The previous prime is 444920689. The next prime is 444920731. The reversal of 444920715 is 517029444.

It is a happy number.

444920715 is a `hidden beast` number, since 4 + 449 + 207 + 1 + 5 = 666.

It is not a de Polignac number, because 444920715 - 2⁸ = 444920459 is a prime.

It is a super-2 number, since 2×444920715² = 395908885272222450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 444920715.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1647720 + ... + 1647989.

It is an arithmetic number, because the mean of its divisors is an integer number (49435650).

Almost surely, 2^444920715 is an apocalyptic number.

444920715 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

444920715 is a deficient number, since it is larger than the sum of its proper divisors (346049685).

444920715 is a wasteful number, since it uses less digits than its factorization.

444920715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3295723 (or 3295717 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 444920715 is about 21093.1437912891. The cubic root of 444920715 is about 763.4153278986.

The spelling of 444920715 in words is "four hundred forty-four million, nine hundred twenty thousand, seven hundred fifteen".