223749339 has 48 divisors (see below), whose sum is σ = 352552320. Its totient is φ = 124830720.

The previous prime is 223749287. The next prime is 223749343. The reversal of 223749339 is 933947322.

It is a happy number.

It is not a de Polignac number, because 223749339 - 2¹² = 223745243 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 223749339.

It is not an unprimeable number, because it can be changed into a prime (223749349) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1159227 + ... + 1159419.

It is an arithmetic number, because the mean of its divisors is an integer number (7344840).

Almost surely, 2^223749339 is an apocalyptic number.

223749339 is a deficient number, since it is larger than the sum of its proper divisors (128802981).

223749339 is a wasteful number, since it uses less digits than its factorization.

223749339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 269 counting only the distinct ones).

The product of its digits is 244944, while the sum is 42.

The square root of 223749339 is about 14958.2532068420. The cubic root of 223749339 is about 607.0911757676.

It can be divided in two parts, 22374 and 9339, that added together give a palindrome (31713).

The spelling of 223749339 in words is "two hundred twenty-three million, seven hundred forty-nine thousand, three hundred thirty-nine".