249386 has 4 divisors (see below), whose sum is σ = 374082. Its totient is φ = 124692.

The previous prime is 249383. The next prime is 249397. The reversal of 249386 is 683942.

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., 235225 + 14161 = 485^2 + 119^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁷ + 4⁸ + 3¹¹ + 9⁴ + 8 + 6 .

It is not an unprimeable number, because it can be changed into a prime (249383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62345 + ... + 62348.

2²⁴⁹³⁸⁶ is an apocalyptic number.

249386 is a deficient number, since it is larger than the sum of its proper divisors (124696).

249386 is a wasteful number, since it uses less digits than its factorization.

249386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124695.

The product of its digits is 10368, while the sum is 32.

The square root of 249386 is about 499.3856225403. The cubic root of 249386 is about 62.9444374478.

The spelling of 249386 in words is "two hundred forty-nine thousand, three hundred eighty-six".