68064090 has 64 divisors (see below), whose sum is σ = 177686784. Its totient is φ = 16616448.

The previous prime is 68064083. The next prime is 68064103. The reversal of 68064090 is 9046086.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17067 + ... + 20673.

It is an arithmetic number, because the mean of its divisors is an integer number (2776356).

Almost surely, 2^68064090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68064090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88843392).

68064090 is an abundant number, since it is smaller than the sum of its proper divisors (109622694).

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

68064090 is a wasteful number, since it uses less digits than its factorization.

68064090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3671.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 68064090 is about 8250.0963630736. The cubic root of 68064090 is about 408.2937019244.

The spelling of 68064090 in words is "sixty-eight million, sixty-four thousand, ninety".