18479756 has 12 divisors (see below), whose sum is σ = 32642568. Its totient is φ = 9153312.

The previous prime is 18479753. The next prime is 18479819. The reversal of 18479756 is 65797481.

It is a self number, because there is not a number n which added to its sum of digits gives 18479756.

It is not an unprimeable number, because it can be changed into a prime (18479753) 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 3 ways as a sum of consecutive naturals, for example, 21161 + ... + 22016.

It is an arithmetic number, because the mean of its divisors is an integer number (2720214).

Almost surely, 2^18479756 is an apocalyptic number.

It is an amenable number.

18479756 is a deficient number, since it is larger than the sum of its proper divisors (14162812).

18479756 is a wasteful number, since it uses less digits than its factorization.

18479756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43288 (or 43286 counting only the distinct ones).

The product of its digits is 423360, while the sum is 47.

The square root of 18479756 is about 4298.8086721788. The cubic root of 18479756 is about 264.3821180601.

The spelling of 18479756 in words is "eighteen million, four hundred seventy-nine thousand, seven hundred fifty-six".