20036016 has 240 divisors, whose sum is σ = 75828480. Its totient is φ = 4769280.

The previous prime is 20036011. The next prime is 20036021. The reversal of 20036016 is 61063002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20036011) and next prime (20036021).

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

It is a self number, because there is not a number n which added to its sum of digits gives 20036016.

It is not an unprimeable number, because it can be changed into a prime (20036011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 144075 + ... + 144213.

It is an arithmetic number, because the mean of its divisors is an integer number (315952).

Almost surely, 2^20036016 is an apocalyptic number.

20036016 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20036016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37914240).

20036016 is an abundant number, since it is smaller than the sum of its proper divisors (55792464).

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

20036016 is a wasteful number, since it uses less digits than its factorization.

20036016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 20036016 is about 4476.1608550185. The cubic root of 20036016 is about 271.6046013928.

Adding to 20036016 its reverse (61063002), we get a palindrome (81099018).

The spelling of 20036016 in words is "twenty million, thirty-six thousand, sixteen".