68790022 has 32 divisors (see below), whose sum is σ = 121320000. Its totient is φ = 29240064.

The previous prime is 68790019. The next prime is 68790037. The reversal of 68790022 is 22009786.

It is a self number, because there is not a number n which added to its sum of digits gives 68790022.

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 15 ways as a sum of consecutive naturals, for example, 101878 + ... + 102550.

It is an arithmetic number, because the mean of its divisors is an integer number (3791250).

Almost surely, 2^68790022 is an apocalyptic number.

68790022 is a deficient number, since it is larger than the sum of its proper divisors (52529978).

68790022 is a wasteful number, since it uses less digits than its factorization.

68790022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845 (or 831 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 68790022 is about 8293.9750421616. The cubic root of 68790022 is about 409.7401129125.

It can be divided in two parts, 687 and 90022, that added together give a palindrome (90709).

The spelling of 68790022 in words is "sixty-eight million, seven hundred ninety thousand, twenty-two".