68660380 has 48 divisors (see below), whose sum is σ = 147865536. Its totient is φ = 26772480.

The previous prime is 68660353. The next prime is 68660393. The reversal of 68660380 is 8306686.

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 15 ways as a sum of consecutive naturals, for example, 203572 + ... + 203908.

It is an arithmetic number, because the mean of its divisors is an integer number (3080532).

Almost surely, 2^68660380 is an apocalyptic number.

It is an amenable number.

68660380 is an abundant number, since it is smaller than the sum of its proper divisors (79205156).

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

68660380 is a wasteful number, since it uses less digits than its factorization.

68660380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 68660380 is about 8286.1559241907. The cubic root of 68660380 is about 409.4825516610.

The spelling of 68660380 in words is "sixty-eight million, six hundred sixty thousand, three hundred eighty".