401323869 has 24 divisors (see below), whose sum is σ = 599147520. Its totient is φ = 265496112.

The previous prime is 401323847. The next prime is 401323883. The reversal of 401323869 is 968323104.

It is not a de Polignac number, because 401323869 - 2²⁴ = 384546653 is a prime.

It is a super-2 number, since 2×401323869² = 322121695658258322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401323669) 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, 1047652 + ... + 1048034.

It is an arithmetic number, because the mean of its divisors is an integer number (24964480).

Almost surely, 2^401323869 is an apocalyptic number.

It is an amenable number.

401323869 is a deficient number, since it is larger than the sum of its proper divisors (197823651).

401323869 is an equidigital number, since it uses as much as digits as its factorization.

401323869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 401323869 is about 20033.0693853937. The cubic root of 401323869 is about 737.6182671198.

The spelling of 401323869 in words is "four hundred one million, three hundred twenty-three thousand, eight hundred sixty-nine".