20606124 has 96 divisors (see below), whose sum is σ = 62092800. Its totient is φ = 5160960.

The previous prime is 20606119. The next prime is 20606141. The reversal of 20606124 is 42160602.

It is a happy number.

It is a super-2 number, since 2×20606124² = 849224692606752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 20606124.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 26412 + ... + 27180.

It is an arithmetic number, because the mean of its divisors is an integer number (646800).

Almost surely, 2^20606124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20606124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31046400).

20606124 is an abundant number, since it is smaller than the sum of its proper divisors (41486676).

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

20606124 is a wasteful number, since it uses less digits than its factorization.

20606124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 20606124 is about 4539.3968762381. The cubic root of 20606124 is about 274.1566405037.

Adding to 20606124 its reverse (42160602), we get a palindrome (62766726).

The spelling of 20606124 in words is "twenty million, six hundred six thousand, one hundred twenty-four".