23540530 has 16 divisors (see below), whose sum is σ = 45632664. Its totient is φ = 8691840.

The previous prime is 23540521. The next prime is 23540567. The reversal of 23540530 is 3504532.

It can be written as a sum of positive squares in 4 ways, for example, as 6869641 + 16670889 = 2621^2 + 4083^2 .

It is an unprimeable number.

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, 90411 + ... + 90670.

Almost surely, 2^23540530 is an apocalyptic number.

23540530 is a deficient number, since it is larger than the sum of its proper divisors (22092134).

23540530 is a wasteful number, since it uses less digits than its factorization.

23540530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181101.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 23540530 is about 4851.8584068375. The cubic root of 23540530 is about 286.5972895630.

The spelling of 23540530 in words is "twenty-three million, five hundred forty thousand, five hundred thirty".