23403429 has 18 divisors (see below), whose sum is σ = 39324870. Its totient is φ = 13373136.

The previous prime is 23403379. The next prime is 23403431. The reversal of 23403429 is 92430432.

It is a happy number.

23403429 is a `hidden beast` number, since 234 + 0 + 3 + 429 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23328900 + 74529 = 4830^2 + 273^2 .

It is not a de Polignac number, because 23403429 - 2¹⁷ = 23272357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23403439) 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 17 ways as a sum of consecutive naturals, for example, 26094 + ... + 26975.

It is an arithmetic number, because the mean of its divisors is an integer number (2184715).

Almost surely, 2^23403429 is an apocalyptic number.

It is an amenable number.

23403429 is a deficient number, since it is larger than the sum of its proper divisors (15921441).

23403429 is a wasteful number, since it uses less digits than its factorization.

23403429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53089 (or 53079 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 23403429 is about 4837.7090652498. The cubic root of 23403429 is about 286.0398211786.

It can be divided in two parts, 23403 and 429, that added together give a palindrome (23832).

The spelling of 23403429 in words is "twenty-three million, four hundred three thousand, four hundred twenty-nine".