68599240 has 32 divisors (see below), whose sum is σ = 155043000. Its totient is φ = 27316224.

The previous prime is 68599231. The next prime is 68599243. The reversal of 68599240 is 4299586.

It can be written as a sum of positive squares in 4 ways, for example, as 65836996 + 2762244 = 8114^2 + 1662^2 .

It is not an unprimeable number, because it can be changed into a prime (68599243) by changing a digit.

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, 5416 + ... + 12904.

Almost surely, 2^68599240 is an apocalyptic number.

It is an amenable number.

68599240 is an abundant number, since it is smaller than the sum of its proper divisors (86443760).

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

68599240 is a wasteful number, since it uses less digits than its factorization.

68599240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7729 (or 7725 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 68599240 is about 8282.4658164100. The cubic root of 68599240 is about 409.3609716072.

The spelling of 68599240 in words is "sixty-eight million, five hundred ninety-nine thousand, two hundred forty".