23429429 has 4 divisors (see below), whose sum is σ = 23813580. Its totient is φ = 23045280.

The previous prime is 23429389. The next prime is 23429447. The reversal of 23429429 is 92492432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1620529 + 21808900 = 1273^2 + 4670^2 .

It is a cyclic number.

It is not a de Polignac number, because 23429429 - 2²⁴ = 6652213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23429629) 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 3 ways as a sum of consecutive naturals, for example, 191984 + ... + 192105.

It is an arithmetic number, because the mean of its divisors is an integer number (5953395).

Almost surely, 2^23429429 is an apocalyptic number.

It is an amenable number.

23429429 is a deficient number, since it is larger than the sum of its proper divisors (384151).

23429429 is an equidigital number, since it uses as much as digits as its factorization.

23429429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384150.

The product of its digits is 31104, while the sum is 35.

The square root of 23429429 is about 4840.3955416887. The cubic root of 23429429 is about 286.1457071294.

The spelling of 23429429 in words is "twenty-three million, four hundred twenty-nine thousand, four hundred twenty-nine".