20602516 has 12 divisors (see below), whose sum is σ = 39332160. Its totient is φ = 9364760.

The previous prime is 20602513. The next prime is 20602523. The reversal of 20602516 is 61520602.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20602511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234076 + ... + 234163.

It is an arithmetic number, because the mean of its divisors is an integer number (3277680).

Almost surely, 2^20602516 is an apocalyptic number.

It is an amenable number.

20602516 is a deficient number, since it is larger than the sum of its proper divisors (18729644).

20602516 is a wasteful number, since it uses less digits than its factorization.

20602516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468254 (or 468252 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 20602516 is about 4538.9994492179. Note that the first 3 decimals coincide. The cubic root of 20602516 is about 274.1406385472.

The spelling of 20602516 in words is "twenty million, six hundred two thousand, five hundred sixteen".