68013340 has 24 divisors (see below), whose sum is σ = 143266032. Its totient is φ = 27121920.

The previous prime is 68013329. The next prime is 68013343. The reversal of 68013340 is 4331086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68013343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1695 + ... + 11785.

It is an arithmetic number, because the mean of its divisors is an integer number (5969418).

Almost surely, 2^68013340 is an apocalyptic number.

It is an amenable number.

68013340 is an abundant number, since it is smaller than the sum of its proper divisors (75252692).

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

68013340 is a wasteful number, since it uses less digits than its factorization.

68013340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10437 (or 10435 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 68013340 is about 8247.0200678791. The cubic root of 68013340 is about 408.1921992696.

The spelling of 68013340 in words is "sixty-eight million, thirteen thousand, three hundred forty".