68040942 has 16 divisors (see below), whose sum is σ = 136180560. Its totient is φ = 22663872.

The previous prime is 68040937. The next prime is 68040949. The reversal of 68040942 is 24904086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68040949) 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, 7284 + ... + 13752.

It is an arithmetic number, because the mean of its divisors is an integer number (8511285).

Almost surely, 2^68040942 is an apocalyptic number.

68040942 is an abundant number, since it is smaller than the sum of its proper divisors (68139618).

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

68040942 is a wasteful number, since it uses less digits than its factorization.

68040942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8227.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 68040942 is about 8248.6933510708. The cubic root of 68040942 is about 408.2474109740.

The spelling of 68040942 in words is "sixty-eight million, forty thousand, nine hundred forty-two".