23403430 has 32 divisors (see below), whose sum is σ = 43092000. Its totient is φ = 9149952.

The previous prime is 23403379. The next prime is 23403431. The reversal of 23403430 is 3430432.

It is a junction number, because it is equal to n+sod(n) for n = 23403398 and 23403407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23403431) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 156996 + ... + 157144.

It is an arithmetic number, because the mean of its divisors is an integer number (1346625).

Almost surely, 2^23403430 is an apocalyptic number.

23403430 is a deficient number, since it is larger than the sum of its proper divisors (19688570).

23403430 is a wasteful number, since it uses less digits than its factorization.

23403430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 23403430 is about 4837.7091686045. The cubic root of 23403430 is about 286.0398252527.

Adding to 23403430 its reverse (3430432), we get a palindrome (26833862).

The spelling of 23403430 in words is "twenty-three million, four hundred three thousand, four hundred thirty".