2390386 has 4 divisors (see below), whose sum is σ = 3585582. Its totient is φ = 1195192.

The previous prime is 2390351. The next prime is 2390389. The reversal of 2390386 is 6830932.

It is a happy number.

2390386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1428025 + 962361 = 1195^2 + 981^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2390389) 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 as a sum of consecutive naturals, namely, 597595 + ... + 597598.

2^2390386 is an apocalyptic number.

2390386 is a deficient number, since it is larger than the sum of its proper divisors (1195196).

2390386 is a wasteful number, since it uses less digits than its factorization.

2390386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195195.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 2390386 is about 1546.0873196557. The cubic root of 2390386 is about 133.7075749800.

It can be divided in two parts, 23 and 90386, that added together give a palindrome (90409).

The spelling of 2390386 in words is "two million, three hundred ninety thousand, three hundred eighty-six".