68439150 has 72 divisors (see below), whose sum is σ = 198034200. Its totient is φ = 16845120.

The previous prime is 68439143. The next prime is 68439181. The reversal of 68439150 is 5193486.

68439150 is a nontrivial binomial coefficient, being equal to C(11700, 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1 + ... + 11699.

It is an arithmetic number, because the mean of its divisors is an integer number (2750475).

Almost surely, 2^68439150 is an apocalyptic number.

68439150 is the 11699-th triangular number and also the 5850-th hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68439150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99017100).

68439150 is an abundant number, since it is smaller than the sum of its proper divisors (129595050).

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

68439150 is a wasteful number, since it uses less digits than its factorization.

68439150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11730 (or 11722 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 68439150 is about 8272.7957789371. The cubic root of 68439150 is about 409.0422817621.

The spelling of 68439150 in words is "sixty-eight million, four hundred thirty-nine thousand, one hundred fifty".