401120256 has 88 divisors (see below), whose sum is σ = 1098338320. Its totient is φ = 130056192.

The previous prime is 401120243. The next prime is 401120263. The reversal of 401120256 is 652021104.

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, 111900 + ... + 115428.

Almost surely, 2^401120256 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 401120256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (549169160).

401120256 is an abundant number, since it is smaller than the sum of its proper divisors (697218064).

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

401120256 is a wasteful number, since it uses less digits than its factorization.

401120256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3589 (or 3571 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 401120256 is about 20027.9868184498. The cubic root of 401120256 is about 737.4935016568.

The spelling of 401120256 in words is "four hundred one million, one hundred twenty thousand, two hundred fifty-six".