68388026 has 32 divisors (see below), whose sum is σ = 120700800. Its totient is φ = 29047200.

The previous prime is 68387987. The next prime is 68388029. The reversal of 68388026 is 62088386.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68388029) 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 15 ways as a sum of consecutive naturals, for example, 89486 + ... + 90246.

It is an arithmetic number, because the mean of its divisors is an integer number (3771900).

Almost surely, 2^68388026 is an apocalyptic number.

68388026 is a deficient number, since it is larger than the sum of its proper divisors (52312774).

68388026 is a wasteful number, since it uses less digits than its factorization.

68388026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 68388026 is about 8269.7053151851. The cubic root of 68388026 is about 408.9404049522.

The spelling of 68388026 in words is "sixty-eight million, three hundred eighty-eight thousand, twenty-six".