23023530 has 48 divisors (see below), whose sum is σ = 60114600. Its totient is φ = 6113664.

The previous prime is 23023519. The next prime is 23023531. The reversal of 23023530 is 3532032.

It can be written as a sum of positive squares in 4 ways, for example, as 23011209 + 12321 = 4797^2 + 111^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23023531) 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, 31044 + ... + 31776.

Almost surely, 2^23023530 is an apocalyptic number.

23023530 is an abundant number, since it is smaller than the sum of its proper divisors (37091070).

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

23023530 is a wasteful number, since it uses less digits than its factorization.

23023530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 23023530 is about 4798.2840682894. The cubic root of 23023530 is about 284.4836449179.

Adding to 23023530 its reverse (3532032), we get a palindrome (26555562).

It can be divided in two parts, 2302 and 3530, that added together give a cube (5832 = 18³).

The spelling of 23023530 in words is "twenty-three million, twenty-three thousand, five hundred thirty".