4509243 has 8 divisors (see below), whose sum is σ = 6680400. Its totient is φ = 3006144.

The previous prime is 4509223. The next prime is 4509257. The reversal of 4509243 is 3429054.

It is not a de Polignac number, because 4509243 - 2⁶ = 4509179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 167009 = 4509243 / (4 + 5 + 0 + 9 + 2 + 4 + 3).

It is not an unprimeable number, because it can be changed into a prime (4509223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83478 + ... + 83531.

It is an arithmetic number, because the mean of its divisors is an integer number (835050).

Almost surely, 2^4509243 is an apocalyptic number.

4509243 is a deficient number, since it is larger than the sum of its proper divisors (2171157).

4509243 is a wasteful number, since it uses less digits than its factorization.

4509243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167018 (or 167012 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 4509243 is about 2123.4978219909. The cubic root of 4509243 is about 165.2093211171.

The spelling of 4509243 in words is "four million, five hundred nine thousand, two hundred forty-three".