444661404 has 48 divisors (see below), whose sum is σ = 1133287680. Its totient is φ = 134576640.

The previous prime is 444661363. The next prime is 444661421. The reversal of 444661404 is 404166444.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138732 + ... + 141900.

It is an arithmetic number, because the mean of its divisors is an integer number (23610160).

Almost surely, 2^444661404 is an apocalyptic number.

444661404 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

444661404 is an abundant number, since it is smaller than the sum of its proper divisors (688626276).

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

444661404 is a wasteful number, since it uses less digits than its factorization.

444661404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250 (or 4248 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 444661404 is about 21086.9960876366. The cubic root of 444661404 is about 763.2669865148.

The spelling of 444661404 in words is "four hundred forty-four million, six hundred sixty-one thousand, four hundred four".