2390393 has 4 divisors (see below), whose sum is σ = 2393508. Its totient is φ = 2387280.

The previous prime is 2390389. The next prime is 2390411. The reversal of 2390393 is 3930932.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1106704 + 1283689 = 1052^2 + 1133^2 .

It is a cyclic number.

It is not a de Polignac number, because 2390393 - 2² = 2390389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2390893) 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, 503 + ... + 2243.

It is an arithmetic number, because the mean of its divisors is an integer number (598377).

2^2390393 is an apocalyptic number.

It is an amenable number.

2390393 is a deficient number, since it is larger than the sum of its proper divisors (3115).

2390393 is a wasteful number, since it uses less digits than its factorization.

2390393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114.

The product of its (nonzero) digits is 4374, while the sum is 29.

The square root of 2390393 is about 1546.0895834330. The cubic root of 2390393 is about 133.7077054962.

The spelling of 2390393 in words is "two million, three hundred ninety thousand, three hundred ninety-three".