23040016 has 20 divisors (see below), whose sum is σ = 44782972. Its totient is φ = 11483136.

The previous prime is 23039993. The next prime is 23040023. The reversal of 23040016 is 61004032.

It can be written as a sum of positive squares in 2 ways, for example, as 6230016 + 16810000 = 2496^2 + 4100^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3256 + ... + 7528.

Almost surely, 2^23040016 is an apocalyptic number.

It is an amenable number.

23040016 is a deficient number, since it is larger than the sum of its proper divisors (21742956).

23040016 is a wasteful number, since it uses less digits than its factorization.

23040016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618 (or 4612 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 23040016 is about 4800.0016666664. The cubic root of 23040016 is about 284.5515302276.

Subtracting from 23040016 its sum of digits (16), we obtain a square (23040000 = 4800²).

Adding to 23040016 its reverse (61004032), we get a palindrome (84044048).

It can be divided in two parts, 230400 and 16, that multiplied together give a square (3686400 = 1920²).

The spelling of 23040016 in words is "twenty-three million, forty thousand, sixteen".