20016324 has 36 divisors (see below), whose sum is σ = 51071020. Its totient is φ = 6609600.

The previous prime is 20016319. The next prime is 20016349. The reversal of 20016324 is 42361002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4665600 + 15350724 = 2160^2 + 3918^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20016297 and 20016306.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1374 + ... + 6474.

Almost surely, 2^20016324 is an apocalyptic number.

It is an amenable number.

20016324 is an abundant number, since it is smaller than the sum of its proper divisors (31054696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20016324 is a wasteful number, since it uses less digits than its factorization.

20016324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220 (or 5215 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20016324 is about 4473.9606614274. The cubic root of 20016324 is about 271.5155918317.

Adding to 20016324 its reverse (42361002), we get a palindrome (62377326).

The spelling of 20016324 in words is "twenty million, sixteen thousand, three hundred twenty-four".