249222243 has 16 divisors (see below), whose sum is σ = 335291040. Its totient is φ = 164657664.

The previous prime is 249222229. The next prime is 249222277. The reversal of 249222243 is 342222942.

It is not a de Polignac number, because 249222243 - 2¹⁶ = 249156707 is a prime.

It is a super-2 number, since 2×249222243² = 124223452811902098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 249222243.

It is not an unprimeable number, because it can be changed into a prime (249222223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224173 + ... + 225281.

It is an arithmetic number, because the mean of its divisors is an integer number (20955690).

Almost surely, 2^249222243 is an apocalyptic number.

249222243 is a deficient number, since it is larger than the sum of its proper divisors (86068797).

249222243 is a wasteful number, since it uses less digits than its factorization.

249222243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718.

The product of its digits is 13824, while the sum is 30.

The square root of 249222243 is about 15786.7743063616. The cubic root of 249222243 is about 629.3065713779.

The spelling of 249222243 in words is "two hundred forty-nine million, two hundred twenty-two thousand, two hundred forty-three".