23400530 has 16 divisors (see below), whose sum is σ = 42444864. Its totient is φ = 9288240.

The previous prime is 23400529. The next prime is 23400617. The reversal of 23400530 is 3500432.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23400499 and 23400508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7622 + ... + 10241.

It is an arithmetic number, because the mean of its divisors is an integer number (2652804).

Almost surely, 2^23400530 is an apocalyptic number.

23400530 is a deficient number, since it is larger than the sum of its proper divisors (19044334).

23400530 is a wasteful number, since it uses less digits than its factorization.

23400530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18001.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 23400530 is about 4837.4094306767. The cubic root of 23400530 is about 286.0280100364.

Adding to 23400530 its reverse (3500432), we get a palindrome (26900962).

The spelling of 23400530 in words is "twenty-three million, four hundred thousand, five hundred thirty".