68173292 has 24 divisors (see below), whose sum is σ = 137000640. Its totient is φ = 29356560.

The previous prime is 68173289. The next prime is 68173297. The reversal of 68173292 is 29237186.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (68173297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39938 + ... + 41609.

It is an arithmetic number, because the mean of its divisors is an integer number (5708360).

Almost surely, 2^68173292 is an apocalyptic number.

It is an amenable number.

68173292 is an abundant number, since it is smaller than the sum of its proper divisors (68827348).

68173292 is a wasteful number, since it uses less digits than its factorization.

68173292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81581 (or 81579 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 68173292 is about 8256.7119363582. The cubic root of 68173292 is about 408.5119406717.

The spelling of 68173292 in words is "sixty-eight million, one hundred seventy-three thousand, two hundred ninety-two".