249980834 has 16 divisors (see below), whose sum is σ = 398781600. Its totient is φ = 117189504.

The previous prime is 249980821. The next prime is 249980849. The reversal of 249980834 is 438089942.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30224 + ... + 37595.

It is an arithmetic number, because the mean of its divisors is an integer number (24923850).

Almost surely, 2^249980834 is an apocalyptic number.

249980834 is a deficient number, since it is larger than the sum of its proper divisors (148800766).

249980834 is a wasteful number, since it uses less digits than its factorization.

249980834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67937.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 249980834 is about 15810.7822070889. The cubic root of 249980834 is about 629.9444261048.

The spelling of 249980834 in words is "two hundred forty-nine million, nine hundred eighty thousand, eight hundred thirty-four".