444384240 has 80 divisors (see below), whose sum is σ = 1411222176. Its totient is φ = 115609600.

The previous prime is 444384169. The next prime is 444384253. The reversal of 444384240 is 42483444.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 12741 + ... + 32420.

Almost surely, 2^444384240 is an apocalyptic number.

444384240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444384240 is an abundant number, since it is smaller than the sum of its proper divisors (966837936).

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

444384240 is a wasteful number, since it uses less digits than its factorization.

444384240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45218 (or 45212 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 33.

The square root of 444384240 is about 21080.4231456582. The cubic root of 444384240 is about 763.1083683703.

The spelling of 444384240 in words is "four hundred forty-four million, three hundred eighty-four thousand, two hundred forty".