22270810 has 16 divisors (see below), whose sum is σ = 40258152. Its totient is φ = 8870400.

The previous prime is 22270769. The next prime is 22270813. The reversal of 22270810 is 1807222.

It can be written as a sum of positive squares in 4 ways, for example, as 22268961 + 1849 = 4719^2 + 43^2 .

It is a super-2 number, since 2×22270810² = 991977956112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22270813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2211 + ... + 7030.

Almost surely, 2^22270810 is an apocalyptic number.

22270810 is a deficient number, since it is larger than the sum of its proper divisors (17987342).

22270810 is a wasteful number, since it uses less digits than its factorization.

22270810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9489.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 22270810 is about 4719.1959060840. The cubic root of 22270810 is about 281.3489752065.

The spelling of 22270810 in words is "twenty-two million, two hundred seventy thousand, eight hundred ten".