23042028 has 24 divisors (see below), whose sum is σ = 53842432. Its totient is φ = 7669584.

The previous prime is 23042017. The next prime is 23042029. The reversal of 23042028 is 82024032.

It is a junction number, because it is equal to n+sod(n) for n = 23041995 and 23042013.

It is not an unprimeable number, because it can be changed into a prime (23042029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15201 + ... + 16647.

Almost surely, 2^23042028 is an apocalyptic number.

It is an amenable number.

23042028 is an abundant number, since it is smaller than the sum of its proper divisors (30800404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23042028 is a wasteful number, since it uses less digits than its factorization.

23042028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781 (or 2779 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 23042028 is about 4800.2112453516. The cubic root of 23042028 is about 284.5598129333.

The spelling of 23042028 in words is "twenty-three million, forty-two thousand, twenty-eight".