23645530 has 16 divisors (see below), whose sum is σ = 42819840. Its totient is φ = 9400912.

The previous prime is 23645507. The next prime is 23645549. The reversal of 23645530 is 3554632.

It is a super-2 number, since 2×23645530² = 1118222177961800, which contains 22 as substring.

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, 5410 + ... + 8749.

It is an arithmetic number, because the mean of its divisors is an integer number (2676240).

Almost surely, 2^23645530 is an apocalyptic number.

23645530 is a deficient number, since it is larger than the sum of its proper divisors (19174310).

23645530 is a wasteful number, since it uses less digits than its factorization.

23645530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14333.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 23645530 is about 4862.6669637145. Note that the first 3 decimals coincide. The cubic root of 23645530 is about 287.0227697054.

The spelling of 23645530 in words is "twenty-three million, six hundred forty-five thousand, five hundred thirty".