249384345 has 64 divisors (see below), whose sum is σ = 476388864. Its totient is φ = 109025280.

The previous prime is 249384323. The next prime is 249384347. The reversal of 249384345 is 543483942.

It is not a de Polignac number, because 249384345 - 2⁸ = 249384089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 249384297 and 249384306.

It is not an unprimeable number, because it can be changed into a prime (249384347) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 227619 + ... + 228711.

It is an arithmetic number, because the mean of its divisors is an integer number (7443576).

Almost surely, 2^249384345 is an apocalyptic number.

It is an amenable number.

249384345 is a deficient number, since it is larger than the sum of its proper divisors (227004519).

249384345 is a wasteful number, since it uses less digits than its factorization.

249384345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202.

The product of its digits is 414720, while the sum is 42.

The square root of 249384345 is about 15791.9075795168. The cubic root of 249384345 is about 629.4429820815.

The spelling of 249384345 in words is "two hundred forty-nine million, three hundred eighty-four thousand, three hundred forty-five".