20002984 has 24 divisors (see below), whose sum is σ = 38142090. Its totient is φ = 9834528.

The previous prime is 20002981. The next prime is 20003003. The reversal of 20002984 is 48920002.

It can be written as a sum of positive squares in only one way, i.e., 19554084 + 448900 = 4422^2 + 670^2 .

It is not an unprimeable number, because it can be changed into a prime (20002981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35634 + ... + 36190.

Almost surely, 2^20002984 is an apocalyptic number.

It is an amenable number.

20002984 is a deficient number, since it is larger than the sum of its proper divisors (18139106).

20002984 is an equidigital number, since it uses as much as digits as its factorization.

20002984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697 (or 626 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20002984 is about 4472.4695638987. The cubic root of 20002984 is about 271.4552606918.

Adding to 20002984 its reverse (48920002), we get a palindrome (68922986).

The spelling of 20002984 in words is "twenty million, two thousand, nine hundred eighty-four".