23045644 has 24 divisors (see below), whose sum is σ = 41022800. Its totient is φ = 11327040.

The previous prime is 23045639. The next prime is 23045647. The reversal of 23045644 is 44654032.

It is a super-2 number, since 2×23045644² = 1062203414749472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23045647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100522 + ... + 100750.

Almost surely, 2^23045644 is an apocalyptic number.

It is an amenable number.

23045644 is a deficient number, since it is larger than the sum of its proper divisors (17977156).

23045644 is a wasteful number, since it uses less digits than its factorization.

23045644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 23045644 is about 4800.5878806663. The cubic root of 23045644 is about 284.5746975384.

Adding to 23045644 its reverse (44654032), we get a palindrome (67699676).

The spelling of 23045644 in words is "twenty-three million, forty-five thousand, six hundred forty-four".