224239643 has 4 divisors (see below), whose sum is σ = 225951528. Its totient is φ = 222527760.

The previous prime is 224239621. The next prime is 224239651. The reversal of 224239643 is 346932422.

224239643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 224239643 - 2¹⁶ = 224174107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224239693) 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, 855746 + ... + 856007.

It is an arithmetic number, because the mean of its divisors is an integer number (56487882).

Almost surely, 2^224239643 is an apocalyptic number.

224239643 is a deficient number, since it is larger than the sum of its proper divisors (1711885).

224239643 is a wasteful number, since it uses less digits than its factorization.

224239643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711884.

The product of its digits is 62208, while the sum is 35.

The square root of 224239643 is about 14974.6333177143. The cubic root of 224239643 is about 607.5342937620.

The spelling of 224239643 in words is "two hundred twenty-four million, two hundred thirty-nine thousand, six hundred forty-three".