22279560 has 64 divisors (see below), whose sum is σ = 67150080. Its totient is φ = 5913600.

The previous prime is 22279559. The next prime is 22279561. The reversal of 22279560 is 6597222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22279559) and next prime (22279561).

It is not an unprimeable number, because it can be changed into a prime (22279561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47889 + ... + 48351.

It is an arithmetic number, because the mean of its divisors is an integer number (1049220).

Almost surely, 2^22279560 is an apocalyptic number.

22279560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22279560 is an abundant number, since it is smaller than the sum of its proper divisors (44870520).

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

22279560 is a wasteful number, since it uses less digits than its factorization.

22279560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878 (or 874 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 22279560 is about 4720.1228797564. The cubic root of 22279560 is about 281.3858168720.

The spelling of 22279560 in words is "twenty-two million, two hundred seventy-nine thousand, five hundred sixty".