22680450 has 72 divisors (see below), whose sum is σ = 65639028. Its totient is φ = 5581440.

The previous prime is 22680439. The next prime is 22680457. The reversal of 22680450 is 5408622.

It can be written as a sum of positive squares in 6 ways, for example, as 2241009 + 20439441 = 1497^2 + 4521^2 .

It is not an unprimeable number, because it can be changed into a prime (22680457) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3912 + ... + 7788.

Almost surely, 2^22680450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22680450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32819514).

22680450 is an abundant number, since it is smaller than the sum of its proper divisors (42958578).

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

22680450 is a wasteful number, since it uses less digits than its factorization.

22680450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3908 (or 3900 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 22680450 is about 4762.3996052410. The cubic root of 22680450 is about 283.0635109074.

The spelling of 22680450 in words is "twenty-two million, six hundred eighty thousand, four hundred fifty".