68450239 has 12 divisors (see below), whose sum is σ = 80861112. Its totient is φ = 57439200.

The previous prime is 68450233. The next prime is 68450267. The reversal of 68450239 is 93205486.

It is not a de Polignac number, because 68450239 - 2²¹ = 66353087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68450198 and 68450207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68450233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16552 + ... + 20269.

It is an arithmetic number, because the mean of its divisors is an integer number (6738426).

Almost surely, 2^68450239 is an apocalyptic number.

68450239 is a deficient number, since it is larger than the sum of its proper divisors (12410873).

68450239 is a wasteful number, since it uses less digits than its factorization.

68450239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36858 (or 36845 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 68450239 is about 8273.4659605271. The cubic root of 68450239 is about 409.0643725533.

The spelling of 68450239 in words is "sixty-eight million, four hundred fifty thousand, two hundred thirty-nine".