249168402 has 48 divisors (see below), whose sum is σ = 631350720. Its totient is φ = 69533856.

The previous prime is 249168391. The next prime is 249168431. The reversal of 249168402 is 204861942.

249168402 is a `hidden beast` number, since 249 + 1 + 6 + 8 + 402 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17577 + ... + 28412.

It is an arithmetic number, because the mean of its divisors is an integer number (13153140).

Almost surely, 2^249168402 is an apocalyptic number.

249168402 is an abundant number, since it is smaller than the sum of its proper divisors (382182318).

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

249168402 is a wasteful number, since it uses less digits than its factorization.

249168402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46047 (or 46044 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 249168402 is about 15785.0689577208. The cubic root of 249168402 is about 629.2612504695.

The spelling of 249168402 in words is "two hundred forty-nine million, one hundred sixty-eight thousand, four hundred two".