22271830 has 32 divisors (see below), whose sum is σ = 45993024. Its totient is φ = 7606656.

The previous prime is 22271803. The next prime is 22271903. The reversal of 22271830 is 3817222.

It is a junction number, because it is equal to n+sod(n) for n = 22271795 and 22271804.

It is a congruent number.

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, 25684 + ... + 26536.

It is an arithmetic number, because the mean of its divisors is an integer number (1437282).

Almost surely, 2^22271830 is an apocalyptic number.

22271830 is an abundant number, since it is smaller than the sum of its proper divisors (23721194).

22271830 is a wasteful number, since it uses less digits than its factorization.

22271830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 22271830 is about 4719.3039741047. The cubic root of 22271830 is about 281.3532703889.

The spelling of 22271830 in words is "twenty-two million, two hundred seventy-one thousand, eight hundred thirty".