22459280 has 40 divisors (see below), whose sum is σ = 53213112. Its totient is φ = 8812544.

The previous prime is 22459249. The next prime is 22459289. The reversal of 22459280 is 8295422.

It can be written as a sum of positive squares in 4 ways, for example, as 7311616 + 15147664 = 2704^2 + 3892^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22459289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1592 + ... + 6888.

Almost surely, 2^22459280 is an apocalyptic number.

22459280 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 22459280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26606556).

22459280 is an abundant number, since it is smaller than the sum of its proper divisors (30753832).

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

22459280 is a wasteful number, since it uses less digits than its factorization.

22459280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5363 (or 5357 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 22459280 is about 4739.1222816045. The cubic root of 22459280 is about 282.1403992125.

The spelling of 22459280 in words is "twenty-two million, four hundred fifty-nine thousand, two hundred eighty".