400185475 has 6 divisors (see below), whose sum is σ = 496230020. Its totient is φ = 320148360.

The previous prime is 400185463. The next prime is 400185523. The reversal of 400185475 is 574581004.

It is not a de Polignac number, because 400185475 - 2¹⁹ = 399661187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400185475.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8003685 + ... + 8003734.

Almost surely, 2^400185475 is an apocalyptic number.

400185475 is a deficient number, since it is larger than the sum of its proper divisors (96044545).

400185475 is a wasteful number, since it uses less digits than its factorization.

400185475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16007429 (or 16007424 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 400185475 is about 20004.6363376093. The cubic root of 400185475 is about 736.9201647543.

The spelling of 400185475 in words is "four hundred million, one hundred eighty-five thousand, four hundred seventy-five".