22280810 has 8 divisors (see below), whose sum is σ = 40105476. Its totient is φ = 8912320.

The previous prime is 22280801. The next prime is 22280833. The reversal of 22280810 is 1808222.

It can be written as a sum of positive squares in 2 ways, for example, as 18567481 + 3713329 = 4309^2 + 1927^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22280810² = 992868988512200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1114031 + ... + 1114050.

Almost surely, 2^22280810 is an apocalyptic number.

22280810 is a deficient number, since it is larger than the sum of its proper divisors (17824666).

22280810 is a wasteful number, since it uses less digits than its factorization.

22280810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228088.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 22280810 is about 4720.2552897063. The cubic root of 22280810 is about 281.3910791796.

The spelling of 22280810 in words is "twenty-two million, two hundred eighty thousand, eight hundred ten".