239042649 has 4 divisors (see below), whose sum is σ = 318723536. Its totient is φ = 159361764.

The previous prime is 239042647. The next prime is 239042651. The reversal of 239042649 is 946240932.

239042649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (239042647) and next prime (239042651).

It is not a de Polignac number, because 239042649 - 2¹ = 239042647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239042641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39840439 + ... + 39840444.

It is an arithmetic number, because the mean of its divisors is an integer number (79680884).

Almost surely, 2^239042649 is an apocalyptic number.

It is an amenable number.

239042649 is a deficient number, since it is larger than the sum of its proper divisors (79680887).

239042649 is an equidigital number, since it uses as much as digits as its factorization.

239042649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79680886.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 239042649 is about 15461.0041394471. The cubic root of 239042649 is about 620.6190911147.

The spelling of 239042649 in words is "two hundred thirty-nine million, forty-two thousand, six hundred forty-nine".