18429716 has 12 divisors (see below), whose sum is σ = 33654432. Its totient is φ = 8814168.

The previous prime is 18429713. The next prime is 18429721. The reversal of 18429716 is 61792481.

It is a self number, because there is not a number n which added to its sum of digits gives 18429716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18429713) 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, 100070 + ... + 100253.

It is an arithmetic number, because the mean of its divisors is an integer number (2804536).

Almost surely, 2^18429716 is an apocalyptic number.

It is an amenable number.

18429716 is a deficient number, since it is larger than the sum of its proper divisors (15224716).

18429716 is a wasteful number, since it uses less digits than its factorization.

18429716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200350 (or 200348 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 18429716 is about 4292.9845096390. The cubic root of 18429716 is about 264.1432685786.

The spelling of 18429716 in words is "eighteen million, four hundred twenty-nine thousand, seven hundred sixteen".