401365554 has 32 divisors (see below), whose sum is σ = 817922880. Its totient is φ = 131265600.

The previous prime is 401365541. The next prime is 401365619. The reversal of 401365554 is 455563104.

It is a super-2 number, since 2×401365554² = 322188615875453832, which contains 22 as substring.

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, 289944 + ... + 291324.

It is an arithmetic number, because the mean of its divisors is an integer number (25560090).

Almost surely, 2^401365554 is an apocalyptic number.

401365554 is an abundant number, since it is smaller than the sum of its proper divisors (416557326).

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

401365554 is a wasteful number, since it uses less digits than its factorization.

401365554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 401365554 is about 20034.1097631015. The cubic root of 401365554 is about 737.6438047261.

The spelling of 401365554 in words is "four hundred one million, three hundred sixty-five thousand, five hundred fifty-four".