68439726 has 12 divisors (see below), whose sum is σ = 148286112. Its totient is φ = 22813236.

The previous prime is 68439719. The next prime is 68439727. The reversal of 68439726 is 62793486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68439727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1901086 + ... + 1901121.

It is an arithmetic number, because the mean of its divisors is an integer number (12357176).

Almost surely, 2^68439726 is an apocalyptic number.

68439726 is an abundant number, since it is smaller than the sum of its proper divisors (79846386).

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

68439726 is a wasteful number, since it uses less digits than its factorization.

68439726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3802215 (or 3802212 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 68439726 is about 8272.8305917624. The cubic root of 68439726 is about 409.0434292910.

The spelling of 68439726 in words is "sixty-eight million, four hundred thirty-nine thousand, seven hundred twenty-six".