19800484 has 12 divisors (see below), whose sum is σ = 37801008. Its totient is φ = 9000200.

The previous prime is 19800467. The next prime is 19800491. The reversal of 19800484 is 48400891.

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, 224962 + ... + 225049.

It is an arithmetic number, because the mean of its divisors is an integer number (3150084).

Almost surely, 2^19800484 is an apocalyptic number.

It is an amenable number.

19800484 is a deficient number, since it is larger than the sum of its proper divisors (18000524).

19800484 is a wasteful number, since it uses less digits than its factorization.

19800484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450026 (or 450024 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 19800484 is about 4449.7734773806. The cubic root of 19800484 is about 270.5361272320.

The spelling of 19800484 in words is "nineteen million, eight hundred thousand, four hundred eighty-four".