20606530 has 32 divisors (see below), whose sum is σ = 43856640. Its totient is φ = 6820800.

The previous prime is 20606527. The next prime is 20606557. The reversal of 20606530 is 3560602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3046 + ... + 7105.

It is an arithmetic number, because the mean of its divisors is an integer number (1370520).

Almost surely, 2^20606530 is an apocalyptic number.

20606530 is an abundant number, since it is smaller than the sum of its proper divisors (23250110).

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

20606530 is a wasteful number, since it uses less digits than its factorization.

20606530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10194.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 20606530 is about 4539.4415956150. The cubic root of 20606530 is about 274.1584410504.

The spelling of 20606530 in words is "twenty million, six hundred six thousand, five hundred thirty".