68284172 has 72 divisors (see below), whose sum is σ = 143046288. Its totient is φ = 28385280.

The previous prime is 68284169. The next prime is 68284187. The reversal of 68284172 is 27148286.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 353708 + ... + 353900.

It is an arithmetic number, because the mean of its divisors is an integer number (1986754).

Almost surely, 2^68284172 is an apocalyptic number.

It is an amenable number.

68284172 is an abundant number, since it is smaller than the sum of its proper divisors (74762116).

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

68284172 is a wasteful number, since it uses less digits than its factorization.

68284172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 266 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 68284172 is about 8263.4237456396. The cubic root of 68284172 is about 408.7332945568.

The spelling of 68284172 in words is "sixty-eight million, two hundred eighty-four thousand, one hundred seventy-two".