2390939 has 8 divisors (see below), whose sum is σ = 2446080. Its totient is φ = 2336616.

The previous prime is 2390923. The next prime is 2390951. The reversal of 2390939 is 9390932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2390939 - 2⁴ = 2390923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2390899 and 2390908.

It is not an unprimeable number, because it can be changed into a prime (2390909) 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 7 ways as a sum of consecutive naturals, for example, 14234 + ... + 14400.

It is an arithmetic number, because the mean of its divisors is an integer number (305760).

2^2390939 is an apocalyptic number.

2390939 is a deficient number, since it is larger than the sum of its proper divisors (55141).

2390939 is a wasteful number, since it uses less digits than its factorization.

2390939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409.

The product of its (nonzero) digits is 13122, while the sum is 35.

The square root of 2390939 is about 1546.2661478542. The cubic root of 2390939 is about 133.7178849729.

The spelling of 2390939 in words is "two million, three hundred ninety thousand, nine hundred thirty-nine".