249336943 has 8 divisors (see below), whose sum is σ = 277899120. Its totient is φ = 222318720.

The previous prime is 249336889. The next prime is 249336947. The reversal of 249336943 is 349633942.

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 249336943 - 2¹⁷ = 249205871 is a prime.

It is a super-2 number, since 2×249336943² = 124337822289170498, 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 249336943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249336947) 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 7 ways as a sum of consecutive naturals, for example, 385648 + ... + 386293.

It is an arithmetic number, because the mean of its divisors is an integer number (34737390).

Almost surely, 2^249336943 is an apocalyptic number.

249336943 is a deficient number, since it is larger than the sum of its proper divisors (28562177).

249336943 is a wasteful number, since it uses less digits than its factorization.

249336943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771977.

The product of its digits is 419904, while the sum is 43.

The square root of 249336943 is about 15790.4066762069. The cubic root of 249336943 is about 629.4030988685.

The spelling of 249336943 in words is "two hundred forty-nine million, three hundred thirty-six thousand, nine hundred forty-three".