249168722 has 8 divisors (see below), whose sum is σ = 407730672. Its totient is φ = 113258500.

The previous prime is 249168721. The next prime is 249168727. The reversal of 249168722 is 227861942.

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

It is a super-2 number, since 2×249168722² = 124170104046226568, 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 249168722.

It is not an unprimeable number, because it can be changed into a prime (249168721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5662904 + ... + 5662947.

It is an arithmetic number, because the mean of its divisors is an integer number (50966334).

Almost surely, 2^249168722 is an apocalyptic number.

249168722 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

249168722 is a deficient number, since it is larger than the sum of its proper divisors (158561950).

249168722 is a wasteful number, since it uses less digits than its factorization.

249168722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11325864.

The product of its digits is 96768, while the sum is 41.

The square root of 249168722 is about 15785.0790938785. The cubic root of 249168722 is about 629.2615198502.

The spelling of 249168722 in words is "two hundred forty-nine million, one hundred sixty-eight thousand, seven hundred twenty-two".