68740572 has 24 divisors (see below), whose sum is σ = 161569296. Its totient is φ = 22745728.

The previous prime is 68740541. The next prime is 68740591. The reversal of 68740572 is 27504786.

It is a self number, because there is not a number n which added to its sum of digits gives 68740572.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19263 + ... + 22550.

It is an arithmetic number, because the mean of its divisors is an integer number (6732054).

Almost surely, 2^68740572 is an apocalyptic number.

It is an amenable number.

68740572 is an abundant number, since it is smaller than the sum of its proper divisors (92828724).

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

68740572 is a wasteful number, since it uses less digits than its factorization.

68740572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41957 (or 41955 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 68740572 is about 8290.9934266046. The cubic root of 68740572 is about 409.6419082359.

The spelling of 68740572 in words is "sixty-eight million, seven hundred forty thousand, five hundred seventy-two".