401552877 has 24 divisors (see below), whose sum is σ = 598066848. Its totient is φ = 237669600.

The previous prime is 401552843. The next prime is 401552881. The reversal of 401552877 is 778255104.

It is not a de Polignac number, because 401552877 - 2¹⁶ = 401487341 is a prime.

It is a super-2 number, since 2×401552877² = 322489426053954258, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401552807) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57727 + ... + 64307.

It is an arithmetic number, because the mean of its divisors is an integer number (24919452).

Almost surely, 2^401552877 is an apocalyptic number.

It is an amenable number.

401552877 is a deficient number, since it is larger than the sum of its proper divisors (196513971).

401552877 is a wasteful number, since it uses less digits than its factorization.

401552877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6681 (or 6638 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 401552877 is about 20038.7843194142. The cubic root of 401552877 is about 737.7585431553.

The spelling of 401552877 in words is "four hundred one million, five hundred fifty-two thousand, eight hundred seventy-seven".