68142204 has 36 divisors (see below), whose sum is σ = 185499496. Its totient is φ = 20966688.

The previous prime is 68142203. The next prime is 68142241. The reversal of 68142204 is 40224186.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68142203) 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 11 ways as a sum of consecutive naturals, for example, 72334 + ... + 73269.

Almost surely, 2^68142204 is an apocalyptic number.

It is an amenable number.

68142204 is an abundant number, since it is smaller than the sum of its proper divisors (117357292).

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

68142204 is a wasteful number, since it uses less digits than its factorization.

68142204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145626 (or 145621 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 68142204 is about 8254.8291320899. The cubic root of 68142204 is about 408.4498354603.

The spelling of 68142204 in words is "sixty-eight million, one hundred forty-two thousand, two hundred four".