400376000 has 56 divisors (see below), whose sum is σ = 991550976. Its totient is φ = 160147200.

The previous prime is 400375957. The next prime is 400376021. The reversal of 400376000 is 673004.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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, 17024 + ... + 33023.

Almost surely, 2^400376000 is an apocalyptic number.

400376000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400376000 is an abundant number, since it is smaller than the sum of its proper divisors (591174976).

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

400376000 is an equidigital number, since it uses as much as digits as its factorization.

400376000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50074 (or 50054 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 400376000 is about 20009.3977920376. The cubic root of 400376000 is about 737.0370934017.

The spelling of 400376000 in words is "four hundred million, three hundred seventy-six thousand".