68739030 has 80 divisors (see below), whose sum is σ = 186715584. Its totient is φ = 18144000.

The previous prime is 68738993. The next prime is 68739031. The reversal of 68739030 is 3093786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68739031) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 91155 + ... + 91905.

Almost surely, 2^68739030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68739030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93357792).

68739030 is an abundant number, since it is smaller than the sum of its proper divisors (117976554).

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

68739030 is a wasteful number, since it uses less digits than its factorization.

68739030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883 (or 874 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 68739030 is about 8290.9004336079. The cubic root of 68739030 is about 409.6388451611.

The spelling of 68739030 in words is "sixty-eight million, seven hundred thirty-nine thousand, thirty".