2538394 has 4 divisors (see below), whose sum is σ = 3807594. Its totient is φ = 1269196.

The previous prime is 2538377. The next prime is 2538397. The reversal of 2538394 is 4938352.

It is a happy number.

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., 1857769 + 680625 = 1363^2 + 825^2 .

It is not an unprimeable number, because it can be changed into a prime (2538397) 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 as a sum of consecutive naturals, namely, 634597 + ... + 634600.

2^2538394 is an apocalyptic number.

2538394 is a deficient number, since it is larger than the sum of its proper divisors (1269200).

2538394 is a wasteful number, since it uses less digits than its factorization.

2538394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269199.

The product of its digits is 25920, while the sum is 34.

The square root of 2538394 is about 1593.2338183707. The cubic root of 2538394 is about 136.4121364720.

The spelling of 2538394 in words is "two million, five hundred thirty-eight thousand, three hundred ninety-four".