68021334 has 12 divisors (see below), whose sum is σ = 147379596. Its totient is φ = 22673772.

The previous prime is 68021329. The next prime is 68021339. The reversal of 68021334 is 43312086.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68021329) and next prime (68021339).

It is a junction number, because it is equal to n+sod(n) for n = 68021298 and 68021307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68021339) 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 5 ways as a sum of consecutive naturals, for example, 1889464 + ... + 1889499.

It is an arithmetic number, because the mean of its divisors is an integer number (12281633).

Almost surely, 2^68021334 is an apocalyptic number.

68021334 is an abundant number, since it is smaller than the sum of its proper divisors (79358262).

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

68021334 is a wasteful number, since it uses less digits than its factorization.

68021334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778971 (or 3778968 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 68021334 is about 8247.5047135482. The cubic root of 68021334 is about 408.2081910373.

The spelling of 68021334 in words is "sixty-eight million, twenty-one thousand, three hundred thirty-four".