444867487040 has 56 divisors (see below), whose sum is σ = 1059454941792. Its totient is φ = 177927805440.

The previous prime is 444867487037. The next prime is 444867487067. The reversal of 444867487040 is 40784768444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3107927 + ... + 3247913.

Almost surely, 2^444867487040 is an apocalyptic number.

444867487040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444867487040 is an abundant number, since it is smaller than the sum of its proper divisors (614587454752).

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

444867487040 is a wasteful number, since it uses less digits than its factorization.

444867487040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149935 (or 149925 counting only the distinct ones).

The product of its (nonzero) digits is 19267584, while the sum is 56.

The spelling of 444867487040 in words is "four hundred forty-four billion, eight hundred sixty-seven million, four hundred eighty-seven thousand, forty".