444242660 has 12 divisors (see below), whose sum is σ = 932909628. Its totient is φ = 177697056.

The previous prime is 444242651. The next prime is 444242671. The reversal of 444242660 is 66242444.

It can be written as a sum of positive squares in 2 ways, for example, as 175085824 + 269156836 = 13232^2 + 16406^2 .

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, 11106047 + ... + 11106086.

It is an arithmetic number, because the mean of its divisors is an integer number (77742469).

Almost surely, 2^444242660 is an apocalyptic number.

It is an amenable number.

444242660 is an abundant number, since it is smaller than the sum of its proper divisors (488666968).

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

444242660 is a wasteful number, since it uses less digits than its factorization.

444242660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22212142 (or 22212140 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

The square root of 444242660 is about 21077.0647861603. The cubic root of 444242660 is about 763.0273181223.

The spelling of 444242660 in words is "four hundred forty-four million, two hundred forty-two thousand, six hundred sixty".