340144249 has 3 divisors (see below), whose sum is σ = 340162693. Its totient is φ = 340125806.

The previous prime is 340144247. The next prime is 340144271. The reversal of 340144249 is 942441043.

The square root of 340144249 is 18443.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 340144249 - 2¹ = 340144247 is a prime.

It is a super-2 number, since 2×340144249² = 231396220255548002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 340144249.

It is not an unprimeable number, because it can be changed into a prime (340144247) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9222 + ... + 27664.

Almost surely, 2^340144249 is an apocalyptic number.

340144249 is the 18443-rd square number.

340144249 is the 9222-nd centered octagonal number.

It is an amenable number.

340144249 is a deficient number, since it is larger than the sum of its proper divisors (18444).

340144249 is an frugal number, since it uses more digits than its factorization.

340144249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36886 (or 18443 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The cubic root of 340144249 is about 698.0518956880.

The spelling of 340144249 in words is "three hundred forty million, one hundred forty-four thousand, two hundred forty-nine".