401944576 has 78 divisors (see below), whose sum is σ = 884595236. Its totient is φ = 182476800.

The previous prime is 401944531. The next prime is 401944589. The reversal of 401944576 is 675449104.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 495211 + ... + 496021.

Almost surely, 2^401944576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401944576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442297618).

401944576 is an abundant number, since it is smaller than the sum of its proper divisors (482650660).

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

401944576 is an equidigital number, since it uses as much as digits as its factorization.

401944576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 401944576 is about 20048.5554591846. Note that the first 3 decimals coincide. The cubic root of 401944576 is about 737.9983499888.

The spelling of 401944576 in words is "four hundred one million, nine hundred forty-four thousand, five hundred seventy-six".