68238760 has 32 divisors (see below), whose sum is σ = 157285800. Its totient is φ = 26629120.

The previous prime is 68238757. The next prime is 68238811. The reversal of 68238760 is 6783286.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 55264356 + 12974404 = 7434^2 + 3602^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19165 + ... + 22444.

Almost surely, 2^68238760 is an apocalyptic number.

It is an amenable number.

68238760 is an abundant number, since it is smaller than the sum of its proper divisors (89047040).

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

68238760 is a wasteful number, since it uses less digits than its factorization.

68238760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41661 (or 41657 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 68238760 is about 8260.6755171717. The cubic root of 68238760 is about 408.6426658793.

The spelling of 68238760 in words is "sixty-eight million, two hundred thirty-eight thousand, seven hundred sixty".