23003445 has 32 divisors (see below), whose sum is σ = 38227968. Its totient is φ = 11803968.

The previous prime is 23003441. The next prime is 23003447. The reversal of 23003445 is 54430032.

It is a happy number.

It is not a de Polignac number, because 23003445 - 2² = 23003441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23003441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46992 + ... + 47478.

It is an arithmetic number, because the mean of its divisors is an integer number (1194624).

Almost surely, 2^23003445 is an apocalyptic number.

It is an amenable number.

23003445 is a deficient number, since it is larger than the sum of its proper divisors (15224523).

23003445 is a wasteful number, since it uses less digits than its factorization.

23003445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 23003445 is about 4796.1906759427. The cubic root of 23003445 is about 284.4008960035.

Adding to 23003445 its reverse (54430032), we get a palindrome (77433477).

The spelling of 23003445 in words is "twenty-three million, three thousand, four hundred forty-five".