445972080 has 40 divisors (see below), whose sum is σ = 1382514192. Its totient is φ = 118925824.

The previous prime is 445972061. The next prime is 445972097. The reversal of 445972080 is 80279544.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×445972080² = 397782192279052800, which contains 22 as substring.

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, 928869 + ... + 929348.

Almost surely, 2^445972080 is an apocalyptic number.

445972080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445972080 is an abundant number, since it is smaller than the sum of its proper divisors (936542112).

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

445972080 is a wasteful number, since it uses less digits than its factorization.

445972080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858233 (or 1858227 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 445972080 is about 21118.0510464389. The cubic root of 445972080 is about 764.0161815967.

The spelling of 445972080 in words is "four hundred forty-five million, nine hundred seventy-two thousand, eighty".