444956836 has 27 divisors (see below), whose sum is σ = 797651841. Its totient is φ = 217183824.

The previous prime is 444956821. The next prime is 444956851. The reversal of 444956836 is 638659444.

The square root of 444956836 is 21094.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (444956821) and next prime (444956851).

It can be written as a sum of positive squares in only one way, i.e., 320768100 + 124188736 = 17910^2 + 11144^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444956836.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2235865 + ... + 2236063.

Almost surely, 2^444956836 is an apocalyptic number.

444956836 is the 21094-th square number.

It is an amenable number.

444956836 is a deficient number, since it is larger than the sum of its proper divisors (352695005).

444956836 is an equidigital number, since it uses as much as digits as its factorization.

444956836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 254 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 49.

The cubic root of 444956836 is about 763.4359866946.

Multiplying 444956836 by its sum of digits (49), we get a square (21802884964 = 147658²).

The spelling of 444956836 in words is "four hundred forty-four million, nine hundred fifty-six thousand, eight hundred thirty-six".