168836404 has 24 divisors (see below), whose sum is σ = 329823648. Its totient is φ = 74958240.

The previous prime is 168836383. The next prime is 168836411. The reversal of 168836404 is 404638861.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 42727 + ... + 46510.

It is an arithmetic number, because the mean of its divisors is an integer number (13742652).

Almost surely, 2^168836404 is an apocalyptic number.

It is an amenable number.

168836404 is a deficient number, since it is larger than the sum of its proper divisors (160987244).

168836404 is a wasteful number, since it uses less digits than its factorization.

168836404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89295 (or 89293 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 168836404 is about 12993.7063226779. The cubic root of 168836404 is about 552.6990242760.

The spelling of 168836404 in words is "one hundred sixty-eight million, eight hundred thirty-six thousand, four hundred four".