444351140 has 12 divisors (see below), whose sum is σ = 933137436. Its totient is φ = 177740448.

The previous prime is 444351133. The next prime is 444351163. The reversal of 444351140 is 41153444.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 180418624 + 263932516 = 13432^2 + 16246^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 11108759 + ... + 11108798.

It is an arithmetic number, because the mean of its divisors is an integer number (77761453).

Almost surely, 2^444351140 is an apocalyptic number.

It is an amenable number.

444351140 is an abundant number, since it is smaller than the sum of its proper divisors (488786296).

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

444351140 is a wasteful number, since it uses less digits than its factorization.

444351140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22217566 (or 22217564 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 444351140 is about 21079.6380424333. The cubic root of 444351140 is about 763.0894211681.

The spelling of 444351140 in words is "four hundred forty-four million, three hundred fifty-one thousand, one hundred forty".