400285352 has 8 divisors (see below), whose sum is σ = 750535050. Its totient is φ = 200142672.

The previous prime is 400285297. The next prime is 400285363. The reversal of 400285352 is 253582004.

It can be written as a sum of positive squares in only one way, i.e., 304362916 + 95922436 = 17446^2 + 9794^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 25017827 + ... + 25017842.

Almost surely, 2^400285352 is an apocalyptic number.

It is an amenable number.

400285352 is a deficient number, since it is larger than the sum of its proper divisors (350249698).

400285352 is a wasteful number, since it uses less digits than its factorization.

400285352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50035675 (or 50035671 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 400285352 is about 20007.1325281760. The cubic root of 400285352 is about 736.9814657074.

The spelling of 400285352 in words is "four hundred million, two hundred eighty-five thousand, three hundred fifty-two".