400285344 has 48 divisors (see below), whose sum is σ = 1052654400. Its totient is φ = 133186560.

The previous prime is 400285297. The next prime is 400285363. The reversal of 400285344 is 443582004.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54024 + ... + 60984.

It is an arithmetic number, because the mean of its divisors is an integer number (21930300).

Almost surely, 2^400285344 is an apocalyptic number.

It is an amenable number.

400285344 is an abundant number, since it is smaller than the sum of its proper divisors (652369056).

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

400285344 is a wasteful number, since it uses less digits than its factorization.

400285344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7573 (or 7565 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 400285344 is about 20007.1323282473. The cubic root of 400285344 is about 736.9814607977.

The spelling of 400285344 in words is "four hundred million, two hundred eighty-five thousand, three hundred forty-four".