18628132 has 12 divisors (see below), whose sum is σ = 34315120. Its totient is φ = 8823816.

The previous prime is 18628111. The next prime is 18628133. The reversal of 18628132 is 23182681.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18628094 and 18628103.

It is not an unprimeable number, because it can be changed into a prime (18628133) 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, 122478 + ... + 122629.

Almost surely, 2^18628132 is an apocalyptic number.

It is an amenable number.

18628132 is a deficient number, since it is larger than the sum of its proper divisors (15686988).

18628132 is a wasteful number, since it uses less digits than its factorization.

18628132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245130 (or 245128 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 18628132 is about 4316.0319739316. The cubic root of 18628132 is about 265.0878171041.

The spelling of 18628132 in words is "eighteen million, six hundred twenty-eight thousand, one hundred thirty-two".