68004904 has 48 divisors (see below), whose sum is σ = 141341760. Its totient is φ = 30650400.

The previous prime is 68004899. The next prime is 68004907. The reversal of 68004904 is 40940086.

It is not an unprimeable number, because it can be changed into a prime (68004907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157569 + ... + 157999.

It is an arithmetic number, because the mean of its divisors is an integer number (2944620).

Almost surely, 2^68004904 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 68004904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70670880).

68004904 is an abundant number, since it is smaller than the sum of its proper divisors (73336856).

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

68004904 is a wasteful number, since it uses less digits than its factorization.

68004904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 68004904 is about 8246.5085945508. The cubic root of 68004904 is about 408.1753219346.

The spelling of 68004904 in words is "sixty-eight million, four thousand, nine hundred four".