68073738 has 16 divisors (see below), whose sum is σ = 136901856. Its totient is φ = 22565520.

The previous prime is 68073703. The next prime is 68073769. The reversal of 68073738 is 83737086.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68073738.

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, 30256 + ... + 32427.

It is an arithmetic number, because the mean of its divisors is an integer number (8556366).

Almost surely, 2^68073738 is an apocalyptic number.

68073738 is an abundant number, since it is smaller than the sum of its proper divisors (68828118).

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

68073738 is a wasteful number, since it uses less digits than its factorization.

68073738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62869.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 68073738 is about 8250.6810627972. The cubic root of 68073738 is about 408.3129927209.

The spelling of 68073738 in words is "sixty-eight million, seventy-three thousand, seven hundred thirty-eight".