22730460 has 96 divisors (see below), whose sum is σ = 67952640. Its totient is φ = 5660928.

The previous prime is 22730431. The next prime is 22730467. The reversal of 22730460 is 6403722.

It is a self number, because there is not a number n which added to its sum of digits gives 22730460.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22730467) 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, 144702 + ... + 144858.

It is an arithmetic number, because the mean of its divisors is an integer number (707840).

Almost surely, 2^22730460 is an apocalyptic number.

22730460 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 22730460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33976320).

22730460 is an abundant number, since it is smaller than the sum of its proper divisors (45222180).

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

22730460 is a wasteful number, since it uses less digits than its factorization.

22730460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 22730460 is about 4767.6472184926. The cubic root of 22730460 is about 283.2714082275.

The spelling of 22730460 in words is "twenty-two million, seven hundred thirty thousand, four hundred sixty".