68276840 has 32 divisors (see below), whose sum is σ = 157778280. Its totient is φ = 26572032.

The previous prime is 68276839. The next prime is 68276843. The reversal of 68276840 is 4867286.

It can be written as a sum of positive squares in 4 ways, for example, as 65836996 + 2439844 = 8114^2 + 1562^2 .

It is not an unprimeable number, because it can be changed into a prime (68276843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21587 + ... + 24546.

Almost surely, 2^68276840 is an apocalyptic number.

It is an amenable number.

68276840 is an abundant number, since it is smaller than the sum of its proper divisors (89501440).

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

68276840 is a wasteful number, since it uses less digits than its factorization.

68276840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46181 (or 46177 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 68276840 is about 8262.9800919523. The cubic root of 68276840 is about 408.7186648132.

The spelling of 68276840 in words is "sixty-eight million, two hundred seventy-six thousand, eight hundred forty".