400364194 has 16 divisors (see below), whose sum is σ = 625616640. Its totient is φ = 191944080.

The previous prime is 400364177. The next prime is 400364207. The reversal of 400364194 is 491463004.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22864 + ... + 36379.

It is an arithmetic number, because the mean of its divisors is an integer number (39101040).

Almost surely, 2^400364194 is an apocalyptic number.

400364194 is a deficient number, since it is larger than the sum of its proper divisors (225252446).

400364194 is a wasteful number, since it uses less digits than its factorization.

400364194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59385.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 400364194 is about 20009.1027784856. The cubic root of 400364194 is about 737.0298489237.

The spelling of 400364194 in words is "four hundred million, three hundred sixty-four thousand, one hundred ninety-four".