68725940 has 24 divisors (see below), whose sum is σ = 149302440. Its totient is φ = 26542208.

The previous prime is 68725939. The next prime is 68725991. The reversal of 68725940 is 4952786.

It can be written as a sum of positive squares in 4 ways, for example, as 630436 + 68095504 = 794^2 + 8252^2 .

It is a congruent number.

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, 58667 + ... + 59826.

It is an arithmetic number, because the mean of its divisors is an integer number (6220935).

Almost surely, 2^68725940 is an apocalyptic number.

It is an amenable number.

68725940 is an abundant number, since it is smaller than the sum of its proper divisors (80576500).

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

68725940 is a wasteful number, since it uses less digits than its factorization.

68725940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118531 (or 118529 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 68725940 is about 8290.1109763380. The cubic root of 68725940 is about 409.6128409493.

The spelling of 68725940 in words is "sixty-eight million, seven hundred twenty-five thousand, nine hundred forty".