3042239 has 4 divisors (see below), whose sum is σ = 3060624. Its totient is φ = 3023856.

The previous prime is 3042229. The next prime is 3042257. The reversal of 3042239 is 9322403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9322403 = 47 ⋅198349.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3042239 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3042209) 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, 8942 + ... + 9275.

It is an arithmetic number, because the mean of its divisors is an integer number (765156).

Almost surely, 2^3042239 is an apocalyptic number.

3042239 is a deficient number, since it is larger than the sum of its proper divisors (18385).

3042239 is a wasteful number, since it uses less digits than its factorization.

3042239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18384.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 3042239 is about 1744.2015365204. The cubic root of 3042239 is about 144.8986846747.

The spelling of 3042239 in words is "three million, forty-two thousand, two hundred thirty-nine".