68189792 has 48 divisors (see below), whose sum is σ = 147755664. Its totient is φ = 30976000.

The previous prime is 68189767. The next prime is 68189813. The reversal of 68189792 is 29798186.

It is a self number, because there is not a number n which added to its sum of digits gives 68189792.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41792 + ... + 43392.

It is an arithmetic number, because the mean of its divisors is an integer number (3078243).

Almost surely, 2^68189792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68189792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73877832).

68189792 is an abundant number, since it is smaller than the sum of its proper divisors (79565872).

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

68189792 is a wasteful number, since it uses less digits than its factorization.

68189792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644 (or 1614 counting only the distinct ones).

The product of its digits is 435456, while the sum is 50.

The square root of 68189792 is about 8257.7110630004. The cubic root of 68189792 is about 408.5448954311.

The spelling of 68189792 in words is "sixty-eight million, one hundred eighty-nine thousand, seven hundred ninety-two".