23042816 has 18 divisors (see below), whose sum is σ = 45996132. Its totient is φ = 11521280.

The previous prime is 23042783. The next prime is 23042819. The reversal of 23042816 is 61824032.

23042816 is a modest number, since divided by 2816 gives 2304 as remainder.

It is not an unprimeable number, because it can be changed into a prime (23042819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44750 + ... + 45261.

Almost surely, 2^23042816 is an apocalyptic number.

It is an amenable number.

23042816 is a deficient number, since it is larger than the sum of its proper divisors (22953316).

23042816 is an frugal number, since it uses more digits than its factorization.

23042816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90027 (or 90013 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 23042816 is about 4800.2933243709. The cubic root of 23042816 is about 284.5630567244.

Adding to 23042816 its reverse (61824032), we get a palindrome (84866848).

The spelling of 23042816 in words is "twenty-three million, forty-two thousand, eight hundred sixteen".