20634060 has 24 divisors (see below), whose sum is σ = 57775536. Its totient is φ = 5502400.

The previous prime is 20634041. The next prime is 20634067. The reversal of 20634060 is 6043602.

It is not an unprimeable number, because it can be changed into a prime (20634067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171891 + ... + 172010.

It is an arithmetic number, because the mean of its divisors is an integer number (2407314).

Almost surely, 2^20634060 is an apocalyptic number.

20634060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20634060 is an abundant number, since it is smaller than the sum of its proper divisors (37141476).

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

20634060 is a wasteful number, since it uses less digits than its factorization.

20634060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343913 (or 343911 counting only the distinct ones).

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

The square root of 20634060 is about 4542.4728948008. The cubic root of 20634060 is about 274.2804771756.

Adding to 20634060 its reverse (6043602), we get a palindrome (26677662).

The spelling of 20634060 in words is "twenty million, six hundred thirty-four thousand, sixty".