18682429 has 8 divisors (see below), whose sum is σ = 19756800. Its totient is φ = 17637600.

The previous prime is 18682421. The next prime is 18682459. The reversal of 18682429 is 92428681.

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 18682429 - 2³ = 18682421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18682391 and 18682400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18682421) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6079 + ... + 8620.

It is an arithmetic number, because the mean of its divisors is an integer number (2469600).

Almost surely, 2^18682429 is an apocalyptic number.

It is an amenable number.

18682429 is a deficient number, since it is larger than the sum of its proper divisors (1074371).

18682429 is a wasteful number, since it uses less digits than its factorization.

18682429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14771.

The product of its digits is 55296, while the sum is 40.

The square root of 18682429 is about 4322.3175496486. The cubic root of 18682429 is about 265.3451252654.

The spelling of 18682429 in words is "eighteen million, six hundred eighty-two thousand, four hundred twenty-nine".