4243319 has 4 divisors (see below), whose sum is σ = 4492944. Its totient is φ = 3993696.

The previous prime is 4243307. The next prime is 4243321. The reversal of 4243319 is 9133424.

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 4243319 - 2²⁰ = 3194743 is a prime.

It is a super-2 number, since 2×4243319² = 36011512271522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243219) 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, 124787 + ... + 124820.

It is an arithmetic number, because the mean of its divisors is an integer number (1123236).

Almost surely, 2^4243319 is an apocalyptic number.

4243319 is a deficient number, since it is larger than the sum of its proper divisors (249625).

4243319 is a wasteful number, since it uses less digits than its factorization.

4243319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249624.

The product of its digits is 2592, while the sum is 26.

The square root of 4243319 is about 2059.9317949874. The cubic root of 4243319 is about 161.8956677198.

The spelling of 4243319 in words is "four million, two hundred forty-three thousand, three hundred nineteen".