18828032 has 18 divisors (see below), whose sum is σ = 37583028. Its totient is φ = 9413888.

The previous prime is 18828013. The next prime is 18828037. The reversal of 18828032 is 23082881.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 18828032.

It is not an unprimeable number, because it can be changed into a prime (18828037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36518 + ... + 37029.

It is an arithmetic number, because the mean of its divisors is an integer number (2087946).

Almost surely, 2^18828032 is an apocalyptic number.

It is an amenable number.

18828032 is a deficient number, since it is larger than the sum of its proper divisors (18754996).

18828032 is an frugal number, since it uses more digits than its factorization.

18828032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73563 (or 73549 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 18828032 is about 4339.1280230019. The cubic root of 18828032 is about 266.0326716611.

The spelling of 18828032 in words is "eighteen million, eight hundred twenty-eight thousand, thirty-two".