23503430 has 16 divisors (see below), whose sum is σ = 42385680. Its totient is φ = 9383712.

The previous prime is 23503423. The next prime is 23503439. The reversal of 23503430 is 3430532.

It is a super-2 number, since 2×23503430² = 1104822443529800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23503439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4292 + ... + 8088.

It is an arithmetic number, because the mean of its divisors is an integer number (2649105).

Almost surely, 2^23503430 is an apocalyptic number.

23503430 is a deficient number, since it is larger than the sum of its proper divisors (18882250).

23503430 is a wasteful number, since it uses less digits than its factorization.

23503430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 23503430 is about 4848.0336219956. The cubic root of 23503430 is about 286.4466507838.

Adding to 23503430 its reverse (3430532), we get a palindrome (26933962).

The spelling of 23503430 in words is "twenty-three million, five hundred three thousand, four hundred thirty".