4248909 has 16 divisors (see below), whose sum is σ = 7194240. Its totient is φ = 2427840.

The previous prime is 4248901. The next prime is 4248911. The reversal of 4248909 is 9098424.

It is a happy number.

It is not a de Polignac number, because 4248909 - 2³ = 4248901 is a prime.

4248909 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4248901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11052 + ... + 11429.

It is an arithmetic number, because the mean of its divisors is an integer number (449640).

Almost surely, 2^4248909 is an apocalyptic number.

It is an amenable number.

4248909 is a deficient number, since it is larger than the sum of its proper divisors (2945331).

4248909 is a wasteful number, since it uses less digits than its factorization.

4248909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22497 (or 22491 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 4248909 is about 2061.2881894582. The cubic root of 4248909 is about 161.9667284209.

The spelling of 4248909 in words is "four million, two hundred forty-eight thousand, nine hundred nine".