4052309 has 4 divisors (see below), whose sum is σ = 4101216. Its totient is φ = 4003404.

The previous prime is 4052299. The next prime is 4052311. The reversal of 4052309 is 9032504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4052309 - 2⁸ = 4052053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4052359) 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, 24329 + ... + 24494.

It is an arithmetic number, because the mean of its divisors is an integer number (1025304).

Almost surely, 2^4052309 is an apocalyptic number.

It is an amenable number.

4052309 is a deficient number, since it is larger than the sum of its proper divisors (48907).

4052309 is an equidigital number, since it uses as much as digits as its factorization.

4052309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48906.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 4052309 is about 2013.0347736689. The cubic root of 4052309 is about 159.4290719513.

The spelling of 4052309 in words is "four million, fifty-two thousand, three hundred nine".