444913972 has 6 divisors (see below), whose sum is σ = 778599458. Its totient is φ = 222456984.

The previous prime is 444913957. The next prime is 444914003. The reversal of 444913972 is 279319444.

It can be written as a sum of positive squares in only one way, i.e., 322058916 + 122855056 = 17946^2 + 11084^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55614243 + ... + 55614250.

Almost surely, 2^444913972 is an apocalyptic number.

It is an amenable number.

444913972 is a deficient number, since it is larger than the sum of its proper divisors (333685486).

444913972 is a wasteful number, since it uses less digits than its factorization.

444913972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111228497 (or 111228495 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 444913972 is about 21092.9839520159. The cubic root of 444913972 is about 763.4114712297.

The spelling of 444913972 in words is "four hundred forty-four million, nine hundred thirteen thousand, nine hundred seventy-two".