20633016 has 16 divisors (see below), whose sum is σ = 51582600. Its totient is φ = 6877664.

The previous prime is 20633003. The next prime is 20633027. The reversal of 20633016 is 61033602.

It is a junction number, because it is equal to n+sod(n) for n = 20632983 and 20633001.

It is a congruent number.

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, 429831 + ... + 429878.

Almost surely, 2^20633016 is an apocalyptic number.

It is an amenable number.

20633016 is an abundant number, since it is smaller than the sum of its proper divisors (30949584).

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

20633016 is a wasteful number, since it uses less digits than its factorization.

20633016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859718 (or 859714 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 20633016 is about 4542.3579779670. The cubic root of 20633016 is about 274.2758512698.

Adding to 20633016 its reverse (61033602), we get a palindrome (81666618).

The spelling of 20633016 in words is "twenty million, six hundred thirty-three thousand, sixteen".