23045439 has 4 divisors (see below), whose sum is σ = 30727256. Its totient is φ = 15363624.

The previous prime is 23045437. The next prime is 23045441. The reversal of 23045439 is 93454032.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (23045437) and next prime (23045441).

It is not a de Polignac number, because 23045439 - 2¹ = 23045437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23045437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3840904 + ... + 3840909.

It is an arithmetic number, because the mean of its divisors is an integer number (7681814).

Almost surely, 2^23045439 is an apocalyptic number.

23045439 is a deficient number, since it is larger than the sum of its proper divisors (7681817).

23045439 is an equidigital number, since it uses as much as digits as its factorization.

23045439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7681816.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 23045439 is about 4800.5665290672. The cubic root of 23045439 is about 284.5738537349.

The spelling of 23045439 in words is "twenty-three million, forty-five thousand, four hundred thirty-nine".