22708480 has 72 divisors (see below), whose sum is σ = 55224792. Its totient is φ = 8945664.

The previous prime is 22708459. The next prime is 22708501. The reversal of 22708480 is 8480722.

It is an interprime number because it is at equal distance from previous prime (22708459) and next prime (22708501).

It can be written as a sum of positive squares in 4 ways, for example, as 278784 + 22429696 = 528^2 + 4736^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144562 + ... + 144718.

It is an arithmetic number, because the mean of its divisors is an integer number (767011).

Almost surely, 2^22708480 is an apocalyptic number.

22708480 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 22708480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27612396).

22708480 is an abundant number, since it is smaller than the sum of its proper divisors (32516312).

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

22708480 is a wasteful number, since it uses less digits than its factorization.

22708480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 22708480 is about 4765.3415407503. The cubic root of 22708480 is about 283.1800724378.

The spelling of 22708480 in words is "twenty-two million, seven hundred eight thousand, four hundred eighty".