239464489 has 4 divisors (see below), whose sum is σ = 261234000. Its totient is φ = 217694980.

The previous prime is 239464457. The next prime is 239464493. The reversal of 239464489 is 984464932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 239464489 - 2⁵ = 239464457 is a prime.

It is a super-2 number, since 2×239464489² = 114686482984062242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239464439) 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 3 ways as a sum of consecutive naturals, for example, 10884739 + ... + 10884760.

It is an arithmetic number, because the mean of its divisors is an integer number (65308500).

Almost surely, 2^239464489 is an apocalyptic number.

It is an amenable number.

239464489 is a deficient number, since it is larger than the sum of its proper divisors (21769511).

239464489 is a wasteful number, since it uses less digits than its factorization.

239464489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21769510.

The product of its digits is 1492992, while the sum is 49.

The square root of 239464489 is about 15474.6401896781. The cubic root of 239464489 is about 620.9839466584.

The spelling of 239464489 in words is "two hundred thirty-nine million, four hundred sixty-four thousand, four hundred eighty-nine".