23475530 has 32 divisors (see below), whose sum is σ = 46040400. Its totient is φ = 8566272.

The previous prime is 23475499. The next prime is 23475533. The reversal of 23475530 is 3557432.

It can be written as a sum of positive squares in 8 ways, for example, as 9778129 + 13697401 = 3127^2 + 3701^2 .

It is a super-2 number, since 2×23475530² = 1102201017561800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23475493 and 23475502.

It is not an unprimeable number, because it can be changed into a prime (23475533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10556 + ... + 12584.

Almost surely, 2^23475530 is an apocalyptic number.

23475530 is a deficient number, since it is larger than the sum of its proper divisors (22564870).

23475530 is a wasteful number, since it uses less digits than its factorization.

23475530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 23475530 is about 4845.1553122681. The cubic root of 23475530 is about 286.3332627107. Note that the first 3 decimals are identical.

The spelling of 23475530 in words is "twenty-three million, four hundred seventy-five thousand, five hundred thirty".