68792440 has 32 divisors (see below), whose sum is σ = 156239280. Its totient is φ = 27258112.

The previous prime is 68792419. The next prime is 68792447. The reversal of 68792440 is 4429786.

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

It is a junction number, because it is equal to n+sod(n) for n = 68792393 and 68792402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68792447) by changing a digit.

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, 3757 + ... + 12316.

Almost surely, 2^68792440 is an apocalyptic number.

It is an amenable number.

68792440 is an abundant number, since it is smaller than the sum of its proper divisors (87446840).

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

68792440 is a wasteful number, since it uses less digits than its factorization.

68792440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16191 (or 16187 counting only the distinct ones).

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

The square root of 68792440 is about 8294.1208093444. The cubic root of 68792440 is about 409.7449137055.

The spelling of 68792440 in words is "sixty-eight million, seven hundred ninety-two thousand, four hundred forty".