68427642 has 16 divisors (see below), whose sum is σ = 137153952. Its totient is φ = 22759440.

The previous prime is 68427641. The next prime is 68427643. The reversal of 68427642 is 24672486.

It is an interprime number because it is at equal distance from previous prime (68427641) and next prime (68427643).

It is a self number, because there is not a number n which added to its sum of digits gives 68427642.

It is not an unprimeable number, because it can be changed into a prime (68427641) 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, 9409 + ... + 15012.

It is an arithmetic number, because the mean of its divisors is an integer number (8572122).

Almost surely, 2^68427642 is an apocalyptic number.

68427642 is an abundant number, since it is smaller than the sum of its proper divisors (68726310).

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

68427642 is a wasteful number, since it uses less digits than its factorization.

68427642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24893.

The product of its digits is 129024, while the sum is 39.

The square root of 68427642 is about 8272.1002169945. The cubic root of 68427642 is about 409.0193537429.

The spelling of 68427642 in words is "sixty-eight million, four hundred twenty-seven thousand, six hundred forty-two".