20901060 has 72 divisors (see below), whose sum is σ = 64209600. Its totient is φ = 5502528.

The previous prime is 20901047. The next prime is 20901071. The reversal of 20901060 is 6010902.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14241 + ... + 15639.

It is an arithmetic number, because the mean of its divisors is an integer number (891800).

Almost surely, 2^20901060 is an apocalyptic number.

20901060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20901060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32104800).

20901060 is an abundant number, since it is smaller than the sum of its proper divisors (43308540).

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

20901060 is a wasteful number, since it uses less digits than its factorization.

20901060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497 (or 1492 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 20901060 is about 4571.7677106345. The cubic root of 20901060 is about 275.4584529186.

Adding to 20901060 its reverse (6010902), we get a palindrome (26911962).

The spelling of 20901060 in words is "twenty million, nine hundred one thousand, sixty".