249871222 has 16 divisors (see below), whose sum is σ = 387533952. Its totient is φ = 120706560.

The previous prime is 249871217. The next prime is 249871231. The reversal of 249871222 is 222178942.

It is a congruent 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, 38998 + ... + 44950.

It is an arithmetic number, because the mean of its divisors is an integer number (24220872).

Almost surely, 2^249871222 is an apocalyptic number.

249871222 is a deficient number, since it is larger than the sum of its proper divisors (137662730).

249871222 is a wasteful number, since it uses less digits than its factorization.

249871222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6663.

The product of its digits is 32256, while the sum is 37.

The square root of 249871222 is about 15807.3154583566. The cubic root of 249871222 is about 629.8523396275.

The spelling of 249871222 in words is "two hundred forty-nine million, eight hundred seventy-one thousand, two hundred twenty-two".