2309493 has 8 divisors (see below), whose sum is σ = 3088800. Its totient is φ = 1534928.

The previous prime is 2309491. The next prime is 2309497. The reversal of 2309493 is 3949032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2309493 - 2¹ = 2309491 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2309493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2309491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178 + ... + 2156.

It is an arithmetic number, because the mean of its divisors is an integer number (386100).

2^2309493 is an apocalyptic number.

It is an amenable number.

2309493 is a deficient number, since it is larger than the sum of its proper divisors (779307).

2309493 is a wasteful number, since it uses less digits than its factorization.

2309493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2371.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 2309493 is about 1519.7016154496. The cubic root of 2309493 is about 132.1819689575.

The spelling of 2309493 in words is "two million, three hundred nine thousand, four hundred ninety-three".