68439196 has 48 divisors (see below), whose sum is σ = 145180672. Its totient is φ = 27604800.

The previous prime is 68439193. The next prime is 68439199. The reversal of 68439196 is 69193486.

It is an interprime number because it is at equal distance from previous prime (68439193) and next prime (68439199).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68439193) 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, 31051 + ... + 33181.

Almost surely, 2^68439196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68439196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72590336).

68439196 is an abundant number, since it is smaller than the sum of its proper divisors (76741476).

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

68439196 is a wasteful number, since it uses less digits than its factorization.

68439196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210 (or 2208 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The square root of 68439196 is about 8272.7985591334. The cubic root of 68439196 is about 409.0423734053.

Subtracting from 68439196 its sum of digits (46), we obtain a triangular number (68439150 = T₁₁₆₉₉).

It can be divided in two parts, 68439 and 196, that added together give a triangular number (68635 = T₃₇₀).

The spelling of 68439196 in words is "sixty-eight million, four hundred thirty-nine thousand, one hundred ninety-six".