400381174 has 4 divisors (see below), whose sum is σ = 600571764. Its totient is φ = 200190586.

The previous prime is 400381117. The next prime is 400381187. The reversal of 400381174 is 471183004.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 100095292 + ... + 100095295.

It is an arithmetic number, because the mean of its divisors is an integer number (150142941).

Almost surely, 2^400381174 is an apocalyptic number.

400381174 is a deficient number, since it is larger than the sum of its proper divisors (200190590).

400381174 is a wasteful number, since it uses less digits than its factorization.

400381174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200190589.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 400381174 is about 20009.5270808683. The cubic root of 400381174 is about 737.0402682620.

The spelling of 400381174 in words is "four hundred million, three hundred eighty-one thousand, one hundred seventy-four".