68940516 has 24 divisors (see below), whose sum is σ = 164785824. Its totient is φ = 22419520.

The previous prime is 68940467. The next prime is 68940517. The reversal of 68940516 is 61504986.

It is not an unprimeable number, because it can be changed into a prime (68940517) 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, 69570 + ... + 70553.

It is an arithmetic number, because the mean of its divisors is an integer number (6866076).

Almost surely, 2^68940516 is an apocalyptic number.

It is an amenable number.

68940516 is an abundant number, since it is smaller than the sum of its proper divisors (95845308).

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

68940516 is a wasteful number, since it uses less digits than its factorization.

68940516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140171 (or 140169 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 68940516 is about 8303.0425748637. The cubic root of 68940516 is about 410.0386955348.

The spelling of 68940516 in words is "sixty-eight million, nine hundred forty thousand, five hundred sixteen".