249966038 has 8 divisors (see below), whose sum is σ = 428513232. Its totient is φ = 107128296.

The previous prime is 249965987. The next prime is 249966049. The reversal of 249966038 is 830669942.

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

It is a junction number, because it is equal to n+sod(n) for n = 249965983 and 249966001.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 8927345 + ... + 8927372.

It is an arithmetic number, because the mean of its divisors is an integer number (53564154).

Almost surely, 2^249966038 is an apocalyptic number.

249966038 is a deficient number, since it is larger than the sum of its proper divisors (178547194).

249966038 is a wasteful number, since it uses less digits than its factorization.

249966038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17854726.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 249966038 is about 15810.3142916262. The cubic root of 249966038 is about 629.9319973631.

The spelling of 249966038 in words is "two hundred forty-nine million, nine hundred sixty-six thousand, thirty-eight".