22840080 has 80 divisors (see below), whose sum is σ = 72048960. Its totient is φ = 5983744.

The previous prime is 22840079. The next prime is 22840091. The reversal of 22840080 is 8004822.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a zygodrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 22840080.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13354 + ... + 14966.

It is an arithmetic number, because the mean of its divisors is an integer number (900612).

Almost surely, 2^22840080 is an apocalyptic number.

22840080 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 22840080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36024480).

22840080 is an abundant number, since it is smaller than the sum of its proper divisors (49208880).

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

22840080 is a wasteful number, since it uses less digits than its factorization.

22840080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688 (or 1682 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 22840080 is about 4779.1296278716. The cubic root of 22840080 is about 283.7260467402.

The spelling of 22840080 in words is "twenty-two million, eight hundred forty thousand, eighty".