2352309 has 4 divisors (see below), whose sum is σ = 3136416. Its totient is φ = 1568204.

The previous prime is 2352289. The next prime is 2352323. The reversal of 2352309 is 9032532.

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 2352309 - 2¹³ = 2344117 is a prime.

It is an Ulam number.

It is a D-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 (2302309) 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, 392049 + ... + 392054.

It is an arithmetic number, because the mean of its divisors is an integer number (784104).

2^2352309 is an apocalyptic number.

It is an amenable number.

2352309 is a deficient number, since it is larger than the sum of its proper divisors (784107).

2352309 is an equidigital number, since it uses as much as digits as its factorization.

2352309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784106.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 2352309 is about 1533.7238995334. The cubic root of 2352309 is about 132.9938188470.

The spelling of 2352309 in words is "two million, three hundred fifty-two thousand, three hundred nine".