440008218972 has 72 divisors (see below), whose sum is σ = 1282383918816. Its totient is φ = 124604089344.

The previous prime is 440008218961. The next prime is 440008219019. The reversal of 440008218972 is 279812800044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7697473 + ... + 7754424.

Almost surely, 2^440008218972 is an apocalyptic number.

440008218972 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

440008218972 is an abundant number, since it is smaller than the sum of its proper divisors (842375699844).

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

440008218972 is a wasteful number, since it uses less digits than its factorization.

440008218972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15452027 (or 15452022 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 440008218972 in words is "four hundred forty billion, eight million, two hundred eighteen thousand, nine hundred seventy-two".