18428902 has 16 divisors (see below), whose sum is σ = 28203552. Its totient is φ = 9029440.

The previous prime is 18428887. The next prime is 18428909. The reversal of 18428902 is 20982481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18428909) 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, 32808 + ... + 33364.

It is an arithmetic number, because the mean of its divisors is an integer number (1762722).

Almost surely, 2^18428902 is an apocalyptic number.

18428902 is a deficient number, since it is larger than the sum of its proper divisors (9774650).

18428902 is a wasteful number, since it uses less digits than its factorization.

18428902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 18428902 is about 4292.8897027527. The cubic root of 18428902 is about 264.1393796457.

The spelling of 18428902 in words is "eighteen million, four hundred twenty-eight thousand, nine hundred two".