68994304 has 36 divisors (see below), whose sum is σ = 138572980. Its totient is φ = 34283520.

The previous prime is 68994293. The next prime is 68994311. The reversal of 68994304 is 40349986.

It can be written as a sum of positive squares in 2 ways, for example, as 5760000 + 63234304 = 2400^2 + 7952^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45592 + ... + 47080.

Almost surely, 2^68994304 is an apocalyptic number.

68994304 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68994304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69286490).

68994304 is an abundant number, since it is smaller than the sum of its proper divisors (69578676).

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

68994304 is a wasteful number, since it uses less digits than its factorization.

68994304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 68994304 is about 8306.2809969324. The cubic root of 68994304 is about 410.1453064183.

The spelling of 68994304 in words is "sixty-eight million, nine hundred ninety-four thousand, three hundred four".