400883172 has 48 divisors (see below), whose sum is σ = 945497280. Its totient is φ = 132193152.

The previous prime is 400883129. The next prime is 400883173. The reversal of 400883172 is 271388004.

It is not an unprimeable number, because it can be changed into a prime (400883173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 732603 + ... + 733149.

It is an arithmetic number, because the mean of its divisors is an integer number (19697860).

Almost surely, 2^400883172 is an apocalyptic number.

It is an amenable number.

400883172 is an abundant number, since it is smaller than the sum of its proper divisors (544614108).

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

400883172 is a wasteful number, since it uses less digits than its factorization.

400883172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 400883172 is about 20022.0671260487. The cubic root of 400883172 is about 737.3481733616.

The spelling of 400883172 in words is "four hundred million, eight hundred eighty-three thousand, one hundred seventy-two".