2309453 has 4 divisors (see below), whose sum is σ = 2409888. Its totient is φ = 2209020.

The previous prime is 2309449. The next prime is 2309471. The reversal of 2309453 is 3549032.

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 2309453 - 2² = 2309449 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2309413) 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, 50183 + ... + 50228.

It is an arithmetic number, because the mean of its divisors is an integer number (602472).

2^2309453 is an apocalyptic number.

2309453 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2309453 is a deficient number, since it is larger than the sum of its proper divisors (100435).

2309453 is a wasteful number, since it uses less digits than its factorization.

2309453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100434.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 2309453 is about 1519.6884549144. The cubic root of 2309453 is about 132.1812058305.

The spelling of 2309453 in words is "two million, three hundred nine thousand, four hundred fifty-three".