22280352 has 96 divisors (see below), whose sum is σ = 62052480. Its totient is φ = 6988800.

The previous prime is 22280339. The next prime is 22280359. The reversal of 22280352 is 25308222.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (22280359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147477 + ... + 147627.

It is an arithmetic number, because the mean of its divisors is an integer number (646380).

Almost surely, 2^22280352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22280352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31026240).

22280352 is an abundant number, since it is smaller than the sum of its proper divisors (39772128).

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

22280352 is a wasteful number, since it uses less digits than its factorization.

22280352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 238 counting only the distinct ones).

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

The square root of 22280352 is about 4720.2067751318. The cubic root of 22280352 is about 281.3891510929.

Adding to 22280352 its reverse (25308222), we get a palindrome (47588574).

The spelling of 22280352 in words is "twenty-two million, two hundred eighty thousand, three hundred fifty-two".