239640416 has 48 divisors (see below), whose sum is σ = 500250240. Its totient is φ = 112803840.

The previous prime is 239640413. The next prime is 239640431. The reversal of 239640416 is 614046932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239640413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33440 + ... + 39968.

It is an arithmetic number, because the mean of its divisors is an integer number (10421880).

Almost surely, 2^239640416 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 239640416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250125120).

239640416 is an abundant number, since it is smaller than the sum of its proper divisors (260609824).

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

239640416 is a wasteful number, since it uses less digits than its factorization.

239640416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6607 (or 6599 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 239640416 is about 15480.3235108314. The cubic root of 239640416 is about 621.1359818662.

The spelling of 239640416 in words is "two hundred thirty-nine million, six hundred forty thousand, four hundred sixteen".