68435860 has 12 divisors (see below), whose sum is σ = 143715348. Its totient is φ = 27374336.

The previous prime is 68435803. The next prime is 68435867. The reversal of 68435860 is 6853486.

It can be written as a sum of positive squares in 2 ways, for example, as 12873744 + 55562116 = 3588^2 + 7454^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68435867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1710877 + ... + 1710916.

It is an arithmetic number, because the mean of its divisors is an integer number (11976279).

Almost surely, 2^68435860 is an apocalyptic number.

It is an amenable number.

68435860 is an abundant number, since it is smaller than the sum of its proper divisors (75279488).

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

68435860 is a wasteful number, since it uses less digits than its factorization.

68435860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3421802 (or 3421800 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 68435860 is about 8272.5969320401. The cubic root of 68435860 is about 409.0357271772.

The spelling of 68435860 in words is "sixty-eight million, four hundred thirty-five thousand, eight hundred sixty".