18829429 has 8 divisors (see below), whose sum is σ = 19049472. Its totient is φ = 18611040.

The previous prime is 18829409. The next prime is 18829453. The reversal of 18829429 is 92492881.

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

It is a cyclic number.

It is not a de Polignac number, because 18829429 - 2⁷ = 18829301 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 (18829409) 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, 48972 + ... + 49354.

It is an arithmetic number, because the mean of its divisors is an integer number (2381184).

Almost surely, 2^18829429 is an apocalyptic number.

It is an amenable number.

18829429 is a deficient number, since it is larger than the sum of its proper divisors (220043).

18829429 is a wasteful number, since it uses less digits than its factorization.

18829429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827.

The product of its digits is 82944, while the sum is 43.

The square root of 18829429 is about 4339.2889970593. The cubic root of 18829429 is about 266.0392511848.

It can be divided in two parts, 1882 and 9429, that added together give a palindrome (11311).

The spelling of 18829429 in words is "eighteen million, eight hundred twenty-nine thousand, four hundred twenty-nine".