22533480 has 96 divisors (see below), whose sum is σ = 74678760. Its totient is φ = 5890560.

The previous prime is 22533473. The next prime is 22533499. The reversal of 22533480 is 8433522.

It can be written as a sum of positive squares in 4 ways, for example, as 22297284 + 236196 = 4722^2 + 486^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18490 + ... + 19670.

Almost surely, 2^22533480 is an apocalyptic number.

22533480 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 22533480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37339380).

22533480 is an abundant number, since it is smaller than the sum of its proper divisors (52145280).

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

22533480 is a wasteful number, since it uses less digits than its factorization.

22533480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251 (or 1244 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 22533480 is about 4746.9442802713. The cubic root of 22533480 is about 282.4507654298.

The spelling of 22533480 in words is "twenty-two million, five hundred thirty-three thousand, four hundred eighty".