400485852 has 36 divisors (see below), whose sum is σ = 1090212760. Its totient is φ = 123226272.

The previous prime is 400485851. The next prime is 400485859. The reversal of 400485852 is 258584004.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400485851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 427402 + ... + 428337.

Almost surely, 2^400485852 is an apocalyptic number.

It is an amenable number.

400485852 is an abundant number, since it is smaller than the sum of its proper divisors (689726908).

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

400485852 is a wasteful number, since it uses less digits than its factorization.

400485852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855762 (or 855757 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 400485852 is about 20012.1426139232. The cubic root of 400485852 is about 737.1044947071.

The spelling of 400485852 in words is "four hundred million, four hundred eighty-five thousand, eight hundred fifty-two".