400055814 has 32 divisors (see below), whose sum is σ = 889695840. Its totient is φ = 133249536.

The previous prime is 400055809. The next prime is 400055827. The reversal of 400055814 is 418550004.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107082 + ... + 110754.

It is an arithmetic number, because the mean of its divisors is an integer number (27802995).

Almost surely, 2^400055814 is an apocalyptic number.

400055814 is an abundant number, since it is smaller than the sum of its proper divisors (489640026).

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

400055814 is a wasteful number, since it uses less digits than its factorization.

400055814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5701 (or 5695 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 400055814 is about 20001.3953013284. The cubic root of 400055814 is about 736.8405682233.

The spelling of 400055814 in words is "four hundred million, fifty-five thousand, eight hundred fourteen".