161892304 has 20 divisors (see below), whose sum is σ = 358476064. Its totient is φ = 69382368.

The previous prime is 161892259. The next prime is 161892307. The reversal of 161892304 is 403298161.

It is a self number, because there is not a number n which added to its sum of digits gives 161892304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161892307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722622 + ... + 722845.

Almost surely, 2^161892304 is an apocalyptic number.

161892304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

161892304 is an abundant number, since it is smaller than the sum of its proper divisors (196583760).

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

161892304 is a wasteful number, since it uses less digits than its factorization.

161892304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445482 (or 1445476 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 161892304 is about 12723.6906595531. The cubic root of 161892304 is about 545.0153506885.

The spelling of 161892304 in words is "one hundred sixty-one million, eight hundred ninety-two thousand, three hundred four".