68142306 has 32 divisors (see below), whose sum is σ = 138636288. Its totient is φ = 22325760.

The previous prime is 68142301. The next prime is 68142311. The reversal of 68142306 is 60324186.

It is an interprime number because it is at equal distance from previous prime (68142301) and next prime (68142311).

It is not an unprimeable number, because it can be changed into a prime (68142301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110856 + ... + 111468.

It is an arithmetic number, because the mean of its divisors is an integer number (4332384).

Almost surely, 2^68142306 is an apocalyptic number.

68142306 is an abundant number, since it is smaller than the sum of its proper divisors (70493982).

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

68142306 is a wasteful number, since it uses less digits than its factorization.

68142306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 68142306 is about 8254.8353102894. The cubic root of 68142306 is about 408.4500392589.

The spelling of 68142306 in words is "sixty-eight million, one hundred forty-two thousand, three hundred six".