20060634 has 64 divisors (see below), whose sum is σ = 46448640. Its totient is φ = 5718720.

The previous prime is 20060633. The next prime is 20060641. The reversal of 20060634 is 43606002.

It is a self number, because there is not a number n which added to its sum of digits gives 20060634.

It is not an unprimeable number, because it can be changed into a prime (20060633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89847 + ... + 90069.

It is an arithmetic number, because the mean of its divisors is an integer number (725760).

Almost surely, 2^20060634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20060634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23224320).

20060634 is an abundant number, since it is smaller than the sum of its proper divisors (26388006).

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

20060634 is a wasteful number, since it uses less digits than its factorization.

20060634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20060634 is about 4478.9099120210. The cubic root of 20060634 is about 271.7157949132.

Adding to 20060634 its reverse (43606002), we get a palindrome (63666636).

The spelling of 20060634 in words is "twenty million, sixty thousand, six hundred thirty-four".