2390438 has 16 divisors (see below), whose sum is σ = 3828384. Its totient is φ = 1115520.

The previous prime is 2390431. The next prime is 2390449. The reversal of 2390438 is 8340932.

2390438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2390438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2390431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5468 + ... + 5888.

It is an arithmetic number, because the mean of its divisors is an integer number (239274).

2^2390438 is an apocalyptic number.

2390438 is a deficient number, since it is larger than the sum of its proper divisors (1437946).

2390438 is a wasteful number, since it uses less digits than its factorization.

2390438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 2390438 is about 1546.1041362082. The cubic root of 2390438 is about 133.7085445227.

The spelling of 2390438 in words is "two million, three hundred ninety thousand, four hundred thirty-eight".