68423936 has 36 divisors (see below), whose sum is σ = 156096192. Its totient is φ = 29323776.

The previous prime is 68423923. The next prime is 68423939. The reversal of 68423936 is 63932486.

It is a junction number, because it is equal to n+sod(n) for n = 68423893 and 68423902.

It is not an unprimeable number, because it can be changed into a prime (68423939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17300 + ... + 20883.

Almost surely, 2^68423936 is an apocalyptic number.

It is an amenable number.

68423936 is an abundant number, since it is smaller than the sum of its proper divisors (87672256).

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

68423936 is an equidigital number, since it uses as much as digits as its factorization.

68423936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38206 (or 38192 counting only the distinct ones).

The product of its digits is 186624, while the sum is 41.

The square root of 68423936 is about 8271.8762079712. The cubic root of 68423936 is about 409.0119695287.

The spelling of 68423936 in words is "sixty-eight million, four hundred twenty-three thousand, nine hundred thirty-six".