400054164 has 24 divisors (see below), whose sum is σ = 938622048. Its totient is φ = 132613920.

The previous prime is 400054153. The next prime is 400054169. The reversal of 400054164 is 461450004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400054169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89922 + ... + 94265.

It is an arithmetic number, because the mean of its divisors is an integer number (39109252).

Almost surely, 2^400054164 is an apocalyptic number.

It is an amenable number.

400054164 is an abundant number, since it is smaller than the sum of its proper divisors (538567884).

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

400054164 is a wasteful number, since it uses less digits than its factorization.

400054164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184375 (or 184373 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 400054164 is about 20001.3540541634. The cubic root of 400054164 is about 736.8395552074.

The spelling of 400054164 in words is "four hundred million, fifty-four thousand, one hundred sixty-four".