441978366 has 24 divisors (see below), whose sum is σ = 893277720. Its totient is φ = 145788672.

The previous prime is 441978353. The next prime is 441978371. The reversal of 441978366 is 663879144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52540 + ... + 60368.

It is an arithmetic number, because the mean of its divisors is an integer number (37219905).

Almost surely, 2^441978366 is an apocalyptic number.

441978366 is an abundant number, since it is smaller than the sum of its proper divisors (451299354).

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

441978366 is an equidigital number, since it uses as much as digits as its factorization.

441978366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8028 (or 7931 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 441978366 is about 21023.2815231115. The cubic root of 441978366 is about 761.7287321214.

The spelling of 441978366 in words is "four hundred forty-one million, nine hundred seventy-eight thousand, three hundred sixty-six".