401288896 has 28 divisors (see below), whose sum is σ = 805266360. Its totient is φ = 198387200.

The previous prime is 401288891. The next prime is 401288933. The reversal of 401288896 is 698882104.

It is a super-2 number, since 2×401288896² = 322065556105797632, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (401288891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29530 + ... + 40921.

Almost surely, 2^401288896 is an apocalyptic number.

It is an amenable number.

401288896 is an abundant number, since it is smaller than the sum of its proper divisors (403977464).

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

401288896 is an equidigital number, since it uses as much as digits as its factorization.

401288896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70552 (or 70542 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 401288896 is about 20032.1964846594. The cubic root of 401288896 is about 737.5968401419.

The spelling of 401288896 in words is "four hundred one million, two hundred eighty-eight thousand, eight hundred ninety-six".