18672932 has 6 divisors (see below), whose sum is σ = 32677638. Its totient is φ = 9336464.

The previous prime is 18672931. The next prime is 18672947. The reversal of 18672932 is 23927681.

It can be written as a sum of positive squares in only one way, i.e., 16434916 + 2238016 = 4054^2 + 1496^2 .

It is not an unprimeable number, because it can be changed into a prime (18672931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2334113 + ... + 2334120.

It is an arithmetic number, because the mean of its divisors is an integer number (5446273).

Almost surely, 2^18672932 is an apocalyptic number.

It is an amenable number.

18672932 is a deficient number, since it is larger than the sum of its proper divisors (14004706).

18672932 is a wasteful number, since it uses less digits than its factorization.

18672932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4668237 (or 4668235 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 18672932 is about 4321.2188095490. The cubic root of 18672932 is about 265.3001559206.

The spelling of 18672932 in words is "eighteen million, six hundred seventy-two thousand, nine hundred thirty-two".