404020446 has 32 divisors (see below), whose sum is σ = 864528000. Its totient is φ = 125491680.

The previous prime is 404020399. The next prime is 404020451. The reversal of 404020446 is 644020404.

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, 22096 + ... + 36003.

It is an arithmetic number, because the mean of its divisors is an integer number (27016500).

Almost surely, 2^404020446 is an apocalyptic number.

404020446 is an abundant number, since it is smaller than the sum of its proper divisors (460507554).

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

404020446 is a wasteful number, since it uses less digits than its factorization.

404020446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58184.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 404020446 is about 20100.2598490666. The cubic root of 404020446 is about 739.2666499106.

The spelling of 404020446 in words is "four hundred four million, twenty thousand, four hundred forty-six".