262561228 has 12 divisors (see below), whose sum is σ = 483665560. Its totient is φ = 124371072.

The previous prime is 262561219. The next prime is 262561267. The reversal of 262561228 is 822165262.

262561228 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 262561193 and 262561202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1727301 + ... + 1727452.

Almost surely, 2^262561228 is an apocalyptic number.

It is an amenable number.

262561228 is a deficient number, since it is larger than the sum of its proper divisors (221104332).

262561228 is a wasteful number, since it uses less digits than its factorization.

262561228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454776 (or 3454774 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 262561228 is about 16203.7411729514. The cubic root of 262561228 is about 640.3393610371.

The spelling of 262561228 in words is "two hundred sixty-two million, five hundred sixty-one thousand, two hundred twenty-eight".