22731060 has 144 divisors (see below), whose sum is σ = 72930816. Its totient is φ = 5280000.

The previous prime is 22731043. The next prime is 22731067. The reversal of 22731060 is 6013722.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22731067) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 225010 + ... + 225110.

It is an arithmetic number, because the mean of its divisors is an integer number (506464).

Almost surely, 2^22731060 is an apocalyptic number.

22731060 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 22731060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36465408).

22731060 is an abundant number, since it is smaller than the sum of its proper divisors (50199756).

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

22731060 is a wasteful number, since it uses less digits than its factorization.

22731060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 22731060 is about 4767.7101421961. The cubic root of 22731060 is about 283.2739006445.

Adding to 22731060 its reverse (6013722), we get a palindrome (28744782).

It can be divided in two parts, 2273 and 1060, that added together give a palindrome (3333).

The spelling of 22731060 in words is "twenty-two million, seven hundred thirty-one thousand, sixty".