400371142 has 8 divisors (see below), whose sum is σ = 601538256. Its totient is φ = 199858392.

The previous prime is 400371119. The next prime is 400371149. The reversal of 400371142 is 241173004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400371149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162058 + ... + 164509.

It is an arithmetic number, because the mean of its divisors is an integer number (75192282).

Almost surely, 2^400371142 is an apocalyptic number.

400371142 is a deficient number, since it is larger than the sum of its proper divisors (201167114).

400371142 is a wasteful number, since it uses less digits than its factorization.

400371142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327182.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 400371142 is about 20009.2763987107. The cubic root of 400371142 is about 737.0341124200.

The spelling of 400371142 in words is "four hundred million, three hundred seventy-one thousand, one hundred forty-two".