401407911 has 12 divisors (see below), whose sum is σ = 580107840. Its totient is φ = 267468480.

The previous prime is 401407901. The next prime is 401407939. The reversal of 401407911 is 119704104.

It is not a de Polignac number, because 401407911 - 2⁶ = 401407847 is a prime.

It is a super-2 number, since 2×401407911² = 322256622026767842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401407901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9130 + ... + 29768.

It is an arithmetic number, because the mean of its divisors is an integer number (48342320).

Almost surely, 2^401407911 is an apocalyptic number.

401407911 is a deficient number, since it is larger than the sum of its proper divisors (178699929).

401407911 is a wasteful number, since it uses less digits than its factorization.

401407911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22806 (or 22803 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 401407911 is about 20035.1668573037. The cubic root of 401407911 is about 737.6697522107.

The spelling of 401407911 in words is "four hundred one million, four hundred seven thousand, nine hundred eleven".