22831280 has 40 divisors (see below), whose sum is σ = 54325392. Its totient is φ = 8918784.

The previous prime is 22831279. The next prime is 22831297. The reversal of 22831280 is 8213822.

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

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, 122 + ... + 6758.

Almost surely, 2^22831280 is an apocalyptic number.

22831280 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 22831280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27162696).

22831280 is an abundant number, since it is smaller than the sum of its proper divisors (31494112).

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

22831280 is a wasteful number, since it uses less digits than its factorization.

22831280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6693 (or 6687 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 22831280 is about 4778.2088694405. The cubic root of 22831280 is about 283.6896033486.

The spelling of 22831280 in words is "twenty-two million, eight hundred thirty-one thousand, two hundred eighty".