401808411 has 16 divisors (see below), whose sum is σ = 595581600. Its totient is φ = 267732864.

The previous prime is 401808343. The next prime is 401808431. The reversal of 401808411 is 114808104.

It is not a de Polignac number, because 401808411 - 2⁷ = 401808283 is a prime.

It is a super-2 number, since 2×401808411² = 322899998300689842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (401808431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93175 + ... + 97391.

It is an arithmetic number, because the mean of its divisors is an integer number (37223850).

Almost surely, 2^401808411 is an apocalyptic number.

401808411 is a deficient number, since it is larger than the sum of its proper divisors (193773189).

401808411 is a wasteful number, since it uses less digits than its factorization.

401808411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7755 (or 7749 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 401808411 is about 20045.1592909610. The cubic root of 401808411 is about 737.9150044225.

The spelling of 401808411 in words is "four hundred one million, eight hundred eight thousand, four hundred eleven".