400040376 has 32 divisors (see below), whose sum is σ = 1000838160. Its totient is φ = 133248512.

The previous prime is 400040363. The next prime is 400040387. The reversal of 400040376 is 673040004.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 31906 + ... + 42638.

Almost surely, 2^400040376 is an apocalyptic number.

It is an amenable number.

400040376 is an abundant number, since it is smaller than the sum of its proper divisors (600797784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400040376 is a wasteful number, since it uses less digits than its factorization.

400040376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12295 (or 12291 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 400040376 is about 20001.0093745291. The cubic root of 400040376 is about 736.8310899700.

The spelling of 400040376 in words is "four hundred million, forty thousand, three hundred seventy-six".