68990112 has 72 divisors (see below), whose sum is σ = 197002260. Its totient is φ = 22901760.

The previous prime is 68990099. The next prime is 68990123. The reversal of 68990112 is 21109986.

It can be written as a sum of positive squares in 2 ways, for example, as 50637456 + 18352656 = 7116^2 + 4284^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120964 + ... + 121532.

Almost surely, 2^68990112 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 68990112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98501130).

68990112 is an abundant number, since it is smaller than the sum of its proper divisors (128012148).

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

68990112 is a wasteful number, since it uses less digits than its factorization.

68990112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 68990112 is about 8306.0286539356. The cubic root of 68990112 is about 410.1369996266.

The spelling of 68990112 in words is "sixty-eight million, nine hundred ninety thousand, one hundred twelve".