239247072 has 36 divisors (see below), whose sum is σ = 680359680. Its totient is φ = 79748928.

The previous prime is 239247011. The next prime is 239247077. The reversal of 239247072 is 270742932.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×239247072² = 114478322921146368, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239247077) 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 5 ways as a sum of consecutive naturals, for example, 415072 + ... + 415647.

It is an arithmetic number, because the mean of its divisors is an integer number (18898880).

Almost surely, 2^239247072 is an apocalyptic number.

It is an amenable number.

239247072 is an abundant number, since it is smaller than the sum of its proper divisors (441112608).

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

239247072 is a wasteful number, since it uses less digits than its factorization.

239247072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830735 (or 830724 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 239247072 is about 15467.6136491703. The cubic root of 239247072 is about 620.7959530947.

The spelling of 239247072 in words is "two hundred thirty-nine million, two hundred forty-seven thousand, seventy-two".