68038240 has 48 divisors (see below), whose sum is σ = 169207920. Its totient is φ = 25781760.

The previous prime is 68038237. The next prime is 68038247. The reversal of 68038240 is 4283086.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68038247) 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, 8151 + ... + 14230.

It is an arithmetic number, because the mean of its divisors is an integer number (3525165).

Almost surely, 2^68038240 is an apocalyptic number.

It is an amenable number.

68038240 is an abundant number, since it is smaller than the sum of its proper divisors (101169680).

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

68038240 is a wasteful number, since it uses less digits than its factorization.

68038240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22415 (or 22407 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 68038240 is about 8248.5295659287. The cubic root of 68038240 is about 408.2420068792.

The spelling of 68038240 in words is "sixty-eight million, thirty-eight thousand, two hundred forty".