23045445 has 16 divisors (see below), whose sum is σ = 40969920. Its totient is φ = 12290832.

The previous prime is 23045441. The next prime is 23045467. The reversal of 23045445 is 54454032.

It is not a de Polignac number, because 23045445 - 2² = 23045441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23045441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85219 + ... + 85488.

It is an arithmetic number, because the mean of its divisors is an integer number (2560620).

Almost surely, 2^23045445 is an apocalyptic number.

It is an amenable number.

23045445 is a deficient number, since it is larger than the sum of its proper divisors (17924475).

23045445 is a wasteful number, since it uses less digits than its factorization.

23045445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170721 (or 170715 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 23045445 is about 4800.5671539934. The cubic root of 23045445 is about 284.5738784316.

Adding to 23045445 its reverse (54454032), we get a palindrome (77499477).

The spelling of 23045445 in words is "twenty-three million, forty-five thousand, four hundred forty-five".