68004400 has 60 divisors (see below), whose sum is σ = 164400192. Its totient is φ = 27032320.

The previous prime is 68004389. The next prime is 68004413. The reversal of 68004400 is 440086.

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, 78369 + ... + 79231.

Almost surely, 2^68004400 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 68004400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82200096).

68004400 is an abundant number, since it is smaller than the sum of its proper divisors (96395792).

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

68004400 is a wasteful number, since it uses less digits than its factorization.

68004400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 68004400 is about 8246.4780361073. The cubic root of 68004400 is about 408.1743135717.

Adding to 68004400 its reverse (440086), we get a palindrome (68444486).

The spelling of 68004400 in words is "sixty-eight million, four thousand, four hundred".