23681429 has 8 divisors (see below), whose sum is σ = 25788000. Its totient is φ = 21660912.

The previous prime is 23681423. The next prime is 23681431. The reversal of 23681429 is 92418632.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-23681429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23681423) 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 7 ways as a sum of consecutive naturals, for example, 20939 + ... + 22040.

It is an arithmetic number, because the mean of its divisors is an integer number (3223500).

Almost surely, 2^23681429 is an apocalyptic number.

23681429 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

23681429 is a deficient number, since it is larger than the sum of its proper divisors (2106571).

23681429 is a wasteful number, since it uses less digits than its factorization.

23681429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43027.

The product of its digits is 20736, while the sum is 35.

The square root of 23681429 is about 4866.3568508690. The cubic root of 23681429 is about 287.1679503566.

The spelling of 23681429 in words is "twenty-three million, six hundred eighty-one thousand, four hundred twenty-nine".