249189338 has 4 divisors (see below), whose sum is σ = 373784010. Its totient is φ = 124594668.

The previous prime is 249189329. The next prime is 249189341. The reversal of 249189338 is 833981942.

It is a happy number.

249189338 is digitally balanced in base 3, 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., 165045409 + 84143929 = 12847^2 + 9173^2 .

It is a junction number, because it is equal to n+sod(n) for n = 249189292 and 249189301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62297333 + ... + 62297336.

Almost surely, 2^249189338 is an apocalyptic number.

249189338 is a deficient number, since it is larger than the sum of its proper divisors (124594672).

249189338 is a wasteful number, since it uses less digits than its factorization.

249189338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124594671.

The product of its digits is 373248, while the sum is 47.

The square root of 249189338 is about 15785.7321021231. The cubic root of 249189338 is about 629.2788742191.

The spelling of 249189338 in words is "two hundred forty-nine million, one hundred eighty-nine thousand, three hundred thirty-eight".