20606518 has 16 divisors (see below), whose sum is σ = 32074560. Its totient is φ = 9921600.

The previous prime is 20606491. The next prime is 20606527. The reversal of 20606518 is 81560602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4888 + ... + 8068.

It is an arithmetic number, because the mean of its divisors is an integer number (2004660).

Almost surely, 2^20606518 is an apocalyptic number.

20606518 is a deficient number, since it is larger than the sum of its proper divisors (11468042).

20606518 is a wasteful number, since it uses less digits than its factorization.

20606518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 20606518 is about 4539.4402738664. The cubic root of 20606518 is about 274.1583878326.

The spelling of 20606518 in words is "twenty million, six hundred six thousand, five hundred eighteen".