20202616 has 32 divisors (see below), whose sum is σ = 43453440. Its totient is φ = 8625888.

The previous prime is 20202601. The next prime is 20202619. The reversal of 20202616 is 61620202.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 20202593 and 20202602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20061 + ... + 21043.

It is an arithmetic number, because the mean of its divisors is an integer number (1357920).

Almost surely, 2^20202616 is an apocalyptic number.

It is an amenable number.

20202616 is an abundant number, since it is smaller than the sum of its proper divisors (23250824).

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

20202616 is a wasteful number, since it uses less digits than its factorization.

20202616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363 (or 1359 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20202616 is about 4494.7320276074. The cubic root of 20202616 is about 272.3553242628.

Adding to 20202616 its reverse (61620202), we get a palindrome (81822818).

The spelling of 20202616 in words is "twenty million, two hundred two thousand, six hundred sixteen".