68306004 has 60 divisors (see below), whose sum is σ = 192313044. Its totient is φ = 21015936.

The previous prime is 68305999. The next prime is 68306053. The reversal of 68306004 is 40060386.

It can be written as a sum of positive squares in 2 ways, for example, as 31945104 + 36360900 = 5652^2 + 6030^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3897 + ... + 12320.

Almost surely, 2^68306004 is an apocalyptic number.

It is an amenable number.

68306004 is an abundant number, since it is smaller than the sum of its proper divisors (124007040).

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

68306004 is a wasteful number, since it uses less digits than its factorization.

68306004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16246 (or 16235 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 68306004 is about 8264.7446421532. The cubic root of 68306004 is about 408.7768503530.

The spelling of 68306004 in words is "sixty-eight million, three hundred six thousand, four".