2390933 has 4 divisors (see below), whose sum is σ = 2400288. Its totient is φ = 2381580.

The previous prime is 2390923. The next prime is 2390951. The reversal of 2390933 is 3390932.

It is a happy number.

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 2390933 - 2⁴ = 2390917 is a prime.

It is a super-2 number, since 2×2390933² = 11433121220978, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2390896 and 2390905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2390923) 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, 4283 + ... + 4808.

It is an arithmetic number, because the mean of its divisors is an integer number (600072).

2^2390933 is an apocalyptic number.

It is an amenable number.

2390933 is a deficient number, since it is larger than the sum of its proper divisors (9355).

2390933 is an equidigital number, since it uses as much as digits as its factorization.

2390933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9354.

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

The square root of 2390933 is about 1546.2642076954. The cubic root of 2390933 is about 133.7177731189.

Subtracting 2390933 from its reverse (3390932), we obtain a palindrome (999999).

The spelling of 2390933 in words is "two million, three hundred ninety thousand, nine hundred thirty-three".