400465402 has 8 divisors (see below), whose sum is σ = 601454196. Its totient is φ = 199980672.

The previous prime is 400465399. The next prime is 400465433. The reversal of 400465402 is 204564004.

It can be written as a sum of positive squares in 2 ways, for example, as 400440121 + 25281 = 20011^2 + 159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124023 + ... + 127210.

Almost surely, 2^400465402 is an apocalyptic number.

400465402 is a deficient number, since it is larger than the sum of its proper divisors (200988794).

400465402 is a wasteful number, since it uses less digits than its factorization.

400465402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252032.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 400465402 is about 20011.6316676077. The cubic root of 400465402 is about 737.0919482435.

The spelling of 400465402 in words is "four hundred million, four hundred sixty-five thousand, four hundred two".