68889400 has 96 divisors (see below), whose sum is σ = 167333040. Its totient is φ = 26357760.

The previous prime is 68889391. The next prime is 68889427. The reversal of 68889400 is 498886.

It is a congruent number.

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, 710152 + ... + 710248.

Almost surely, 2^68889400 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 68889400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83666520).

68889400 is an abundant number, since it is smaller than the sum of its proper divisors (98443640).

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

68889400 is a wasteful number, since it uses less digits than its factorization.

68889400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 68889400 is about 8299.9638553430. The cubic root of 68889400 is about 409.9373293065.

The spelling of 68889400 in words is "sixty-eight million, eight hundred eighty-nine thousand, four hundred".