400969195 has 24 divisors (see below), whose sum is σ = 541216368. Its totient is φ = 284813760.

The previous prime is 400969187. The next prime is 400969201. The reversal of 400969195 is 591969004.

It is not a de Polignac number, because 400969195 - 2³ = 400969187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18309 + ... + 33721.

It is an arithmetic number, because the mean of its divisors is an integer number (22550682).

Almost surely, 2^400969195 is an apocalyptic number.

400969195 is a deficient number, since it is larger than the sum of its proper divisors (140247173).

400969195 is a wasteful number, since it uses less digits than its factorization.

400969195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15483 (or 15472 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 400969195 is about 20024.2152155834. The cubic root of 400969195 is about 737.4009105595.

The spelling of 400969195 in words is "four hundred million, nine hundred sixty-nine thousand, one hundred ninety-five".