224691839 has 4 divisors (see below), whose sum is σ = 237909024. Its totient is φ = 211474656.

The previous prime is 224691793. The next prime is 224691871. The reversal of 224691839 is 938196422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224691839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 224691839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224691889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6608567 + ... + 6608600.

It is an arithmetic number, because the mean of its divisors is an integer number (59477256).

Almost surely, 2^224691839 is an apocalyptic number.

224691839 is a deficient number, since it is larger than the sum of its proper divisors (13217185).

224691839 is a wasteful number, since it uses less digits than its factorization.

224691839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13217184.

The product of its digits is 186624, while the sum is 44.

The square root of 224691839 is about 14989.7244471004. The cubic root of 224691839 is about 607.9423989969.

The spelling of 224691839 in words is "two hundred twenty-four million, six hundred ninety-one thousand, eight hundred thirty-nine".