68421234 has 16 divisors (see below), whose sum is σ = 156391488. Its totient is φ = 19548912.

The previous prime is 68421233. The next prime is 68421259. The reversal of 68421234 is 43212486.

It is not an unprimeable number, because it can be changed into a prime (68421233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 814497 + ... + 814580.

It is an arithmetic number, because the mean of its divisors is an integer number (9774468).

Almost surely, 2^68421234 is an apocalyptic number.

68421234 is an abundant number, since it is smaller than the sum of its proper divisors (87970254).

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

68421234 is a wasteful number, since it uses less digits than its factorization.

68421234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629089.

The product of its digits is 9216, while the sum is 30.

The square root of 68421234 is about 8271.7128818643. The cubic root of 68421234 is about 409.0065856190.

The spelling of 68421234 in words is "sixty-eight million, four hundred twenty-one thousand, two hundred thirty-four".