400968194 has 16 divisors (see below), whose sum is σ = 658022400. Its totient is φ = 181732560.

The previous prime is 400968187. The next prime is 400968199. The reversal of 400968194 is 491869004.

It is not an unprimeable number, because it can be changed into a prime (400968199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18434 + ... + 33789.

It is an arithmetic number, because the mean of its divisors is an integer number (41126400).

Almost surely, 2^400968194 is an apocalyptic number.

400968194 is a deficient number, since it is larger than the sum of its proper divisors (257054206).

400968194 is a wasteful number, since it uses less digits than its factorization.

400968194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52585.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 400968194 is about 20024.1902208304. The cubic root of 400968194 is about 737.4002969306.

The spelling of 400968194 in words is "four hundred million, nine hundred sixty-eight thousand, one hundred ninety-four".