249448345 has 8 divisors (see below), whose sum is σ = 299429064. Its totient is φ = 199497984.

The previous prime is 249448279. The next prime is 249448417. The reversal of 249448345 is 543844942.

It can be written as a sum of positive squares in 4 ways, for example, as 1669264 + 247779081 = 1292^2 + 15741^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 249448345 - 2⁷ = 249448217 is a prime.

It is a Duffinian number.

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 in 7 ways as a sum of consecutive naturals, for example, 18907 + ... + 29263.

It is an arithmetic number, because the mean of its divisors is an integer number (37428633).

Almost surely, 2^249448345 is an apocalyptic number.

It is an amenable number.

249448345 is a deficient number, since it is larger than the sum of its proper divisors (49980719).

249448345 is a wasteful number, since it uses less digits than its factorization.

249448345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15179.

The product of its digits is 552960, while the sum is 43.

The square root of 249448345 is about 15793.9338038375. The cubic root of 249448345 is about 629.4968225438.

The spelling of 249448345 in words is "two hundred forty-nine million, four hundred forty-eight thousand, three hundred forty-five".