18479732 has 12 divisors (see below), whose sum is σ = 32437860. Its totient is φ = 9211776.

The previous prime is 18479729. The next prime is 18479743. The reversal of 18479732 is 23797481.

It can be written as a sum of positive squares in 2 ways, for example, as 10784656 + 7695076 = 3284^2 + 2774^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18479732.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5507 + ... + 8202.

It is an arithmetic number, because the mean of its divisors is an integer number (2703155).

Almost surely, 2^18479732 is an apocalyptic number.

It is an amenable number.

18479732 is a deficient number, since it is larger than the sum of its proper divisors (13958128).

18479732 is a wasteful number, since it uses less digits than its factorization.

18479732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14050 (or 14048 counting only the distinct ones).

The product of its digits is 84672, while the sum is 41.

The square root of 18479732 is about 4298.8058807069. The cubic root of 18479732 is about 264.3820036074.

The spelling of 18479732 in words is "eighteen million, four hundred seventy-nine thousand, seven hundred thirty-two".