239641452 has 144 divisors (see below), whose sum is σ = 694643040. Its totient is φ = 69175296.

The previous prime is 239641447. The next prime is 239641453. The reversal of 239641452 is 254146932.

It is a happy number.

239641452 is a `hidden beast` number, since 2 + 3 + 9 + 641 + 4 + 5 + 2 = 666.

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

Its product of digits (51840) is a multiple of the sum of its prime factors (640).

It is not an unprimeable number, because it can be changed into a prime (239641453) 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 47 ways as a sum of consecutive naturals, for example, 429958 + ... + 430514.

It is an arithmetic number, because the mean of its divisors is an integer number (4823910).

Almost surely, 2^239641452 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 239641452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347321520).

239641452 is an abundant number, since it is smaller than the sum of its proper divisors (455001588).

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

239641452 is a wasteful number, since it uses less digits than its factorization.

239641452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 635 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 239641452 is about 15480.3569726282. The cubic root of 239641452 is about 621.1368769517.

The spelling of 239641452 in words is "two hundred thirty-nine million, six hundred forty-one thousand, four hundred fifty-two".