249706222 has 8 divisors (see below), whose sum is σ = 374852016. Its totient is φ = 124755552.

The previous prime is 249706213. The next prime is 249706241. The reversal of 249706222 is 222607942.

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

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, 45538 + ... + 50725.

It is an arithmetic number, because the mean of its divisors is an integer number (46856502).

Almost surely, 2^249706222 is an apocalyptic number.

249706222 is a deficient number, since it is larger than the sum of its proper divisors (125145794).

249706222 is a wasteful number, since it uses less digits than its factorization.

249706222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97562.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 249706222 is about 15802.0954939527. The cubic root of 249706222 is about 629.7136701707.

The spelling of 249706222 in words is "two hundred forty-nine million, seven hundred six thousand, two hundred twenty-two".