23224545 has 24 divisors (see below), whose sum is σ = 40862016. Its totient is φ = 12199968.

The previous prime is 23224541. The next prime is 23224561. The reversal of 23224545 is 54542232.

It is a happy number.

It is not a de Polignac number, because 23224545 - 2² = 23224541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23224541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 837 + ... + 6866.

It is an arithmetic number, because the mean of its divisors is an integer number (1702584).

Almost surely, 2^23224545 is an apocalyptic number.

It is an amenable number.

23224545 is a deficient number, since it is larger than the sum of its proper divisors (17637471).

23224545 is a wasteful number, since it uses less digits than its factorization.

23224545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7781 (or 7778 counting only the distinct ones).

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

The square root of 23224545 is about 4819.1850970885. The cubic root of 23224545 is about 285.3091750965.

Adding to 23224545 its reverse (54542232), we get a palindrome (77766777).

The spelling of 23224545 in words is "twenty-three million, two hundred twenty-four thousand, five hundred forty-five".