20016836 has 12 divisors (see below), whose sum is σ = 40033728. Its totient is φ = 8578632.

The previous prime is 20016833. The next prime is 20016839. The reversal of 20016836 is 63861002.

It is an interprime number because it is at equal distance from previous prime (20016833) and next prime (20016839).

20016836 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20016833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357416 + ... + 357471.

It is an arithmetic number, because the mean of its divisors is an integer number (3336144).

Almost surely, 2^20016836 is an apocalyptic number.

It is an amenable number.

20016836 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20016836 is a wasteful number, since it uses less digits than its factorization.

20016836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714898 (or 714896 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20016836 is about 4474.0178810550. The cubic root of 20016836 is about 271.5179068555.

Adding to 20016836 its reverse (63861002), we get a palindrome (83877838).

The spelling of 20016836 in words is "twenty million, sixteen thousand, eight hundred thirty-six".