249116439 has 16 divisors (see below), whose sum is σ = 390225024. Its totient is φ = 139365600.

The previous prime is 249116423. The next prime is 249116443. The reversal of 249116439 is 934611942.

It is not a de Polignac number, because 249116439 - 2⁴ = 249116423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 249116397 and 249116406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249116459) 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 15 ways as a sum of consecutive naturals, for example, 289917 + ... + 290774.

It is an arithmetic number, because the mean of its divisors is an integer number (24389064).

Almost surely, 2^249116439 is an apocalyptic number.

249116439 is a deficient number, since it is larger than the sum of its proper divisors (141108585).

249116439 is a wasteful number, since it uses less digits than its factorization.

249116439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580718.

The product of its digits is 46656, while the sum is 39.

The square root of 249116439 is about 15783.4229177324. The cubic root of 249116439 is about 629.2175041847.

The spelling of 249116439 in words is "two hundred forty-nine million, one hundred sixteen thousand, four hundred thirty-nine".