68022740 has 24 divisors (see below), whose sum is σ = 143603712. Its totient is φ = 27065120.

The previous prime is 68022739. The next prime is 68022743. The reversal of 68022740 is 4722086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68022743) 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, 5084 + ... + 12723.

It is an arithmetic number, because the mean of its divisors is an integer number (5983488).

Almost surely, 2^68022740 is an apocalyptic number.

It is an amenable number.

68022740 is an abundant number, since it is smaller than the sum of its proper divisors (75580972).

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

68022740 is a wasteful number, since it uses less digits than its factorization.

68022740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18007 (or 18005 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 68022740 is about 8247.5899510099. The cubic root of 68022740 is about 408.2110035705.

The spelling of 68022740 in words is "sixty-eight million, twenty-two thousand, seven hundred forty".