249222242 has 8 divisors (see below), whose sum is σ = 373994076. Its totient is φ = 124557552.

The previous prime is 249222229. The next prime is 249222277. The reversal of 249222242 is 242222942.

It can be written as a sum of positive squares in 2 ways, for example, as 197655481 + 51566761 = 14059^2 + 7181^2 .

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

It is a super-2 number, since 2×249222242² = 124223451815013128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20693 + ... + 30440.

Almost surely, 2^249222242 is an apocalyptic number.

249222242 is a deficient number, since it is larger than the sum of its proper divisors (124771834).

249222242 is a wasteful number, since it uses less digits than its factorization.

249222242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53572.

The product of its digits is 9216, while the sum is 29.

The square root of 249222242 is about 15786.7742746896. The cubic root of 249222242 is about 629.3065705362.

The spelling of 249222242 in words is "two hundred forty-nine million, two hundred twenty-two thousand, two hundred forty-two".