239252739 has 32 divisors (see below), whose sum is σ = 366847488. Its totient is φ = 137280000.

The previous prime is 239252707. The next prime is 239252789. The reversal of 239252739 is 937252932.

It is not a de Polignac number, because 239252739 - 2⁵ = 239252707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 239252739.

It is not an unprimeable number, because it can be changed into a prime (239252789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75099 + ... + 78219.

It is an arithmetic number, because the mean of its divisors is an integer number (11463984).

Almost surely, 2^239252739 is an apocalyptic number.

239252739 is a deficient number, since it is larger than the sum of its proper divisors (127594749).

239252739 is a wasteful number, since it uses less digits than its factorization.

239252739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3259.

The product of its digits is 204120, while the sum is 42.

The square root of 239252739 is about 15467.7968373004. The cubic root of 239252739 is about 620.8008546147.

The spelling of 239252739 in words is "two hundred thirty-nine million, two hundred fifty-two thousand, seven hundred thirty-nine".