808980444 has 18 divisors (see below), whose sum is σ = 2044922880. Its totient is φ = 269660136.

The previous prime is 808980443. The next prime is 808980467. The reversal of 808980444 is 444089808.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 808980444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808980443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11235804 + ... + 11235875.

Almost surely, 2^808980444 is an apocalyptic number.

It is an amenable number.

808980444 is an abundant number, since it is smaller than the sum of its proper divisors (1235942436).

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

808980444 is a wasteful number, since it uses less digits than its factorization.

808980444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22471689 (or 22471684 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 808980444 is about 28442.5815284056. The cubic root of 808980444 is about 931.7784767648.

The spelling of 808980444 in words is "eight hundred eight million, nine hundred eighty thousand, four hundred forty-four".