239976 has 64 divisors (see below), whose sum is σ = 734400. Its totient is φ = 72000.

The previous prime is 239963. The next prime is 239977. The reversal of 239976 is 679932.

239976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 2 + 3¹¹ + 9² + 9⁵ + 7⁴ + 6⁴ .

It is a self number, because there is not a number n which added to its sum of digits gives 239976.

It is not an unprimeable number, because it can be changed into a prime (239977) by changing a digit.

239976 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2326 + ... + 2426.

It is an arithmetic number, because the mean of its divisors is an integer number (11475).

2²³⁹⁹⁷⁶ 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 239976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367200).

239976 is an abundant number, since it is smaller than the sum of its proper divisors (494424).

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

239976 is a wasteful number, since it uses less digits than its factorization.

239976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 117 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 239976 is about 489.8734530468. The cubic root of 239976 is about 62.1425785617.

239976 divided by its sum of digits (36) gives a palindrome (6666).

It can be divided in two parts, 23 and 9976, that added together give a palindrome (9999).

The spelling of 239976 in words is "two hundred thirty-nine thousand, nine hundred seventy-six".