22280532 has 24 divisors (see below), whose sum is σ = 52265472. Its totient is φ = 7387200.

The previous prime is 22280513. The next prime is 22280551. The reversal of 22280532 is 23508222.

It is an interprime number because it is at equal distance from previous prime (22280513) and next prime (22280551).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2569 + ... + 7152.

It is an arithmetic number, because the mean of its divisors is an integer number (2177728).

Almost surely, 2^22280532 is an apocalyptic number.

It is an amenable number.

22280532 is an abundant number, since it is smaller than the sum of its proper divisors (29984940).

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

22280532 is a wasteful number, since it uses less digits than its factorization.

22280532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9919 (or 9917 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 22280532 is about 4720.2258420546. The cubic root of 22280532 is about 281.3899088594.

Adding to 22280532 its reverse (23508222), we get a palindrome (45788754).

The spelling of 22280532 in words is "twenty-two million, two hundred eighty thousand, five hundred thirty-two".