261466228 has 12 divisors (see below), whose sum is σ = 460858720. Its totient is φ = 129792312.

The previous prime is 261466213. The next prime is 261466237. The reversal of 261466228 is 822664162.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 234576 + ... + 235687.

Almost surely, 2^261466228 is an apocalyptic number.

It is an amenable number.

261466228 is a deficient number, since it is larger than the sum of its proper divisors (199392492).

261466228 is a wasteful number, since it uses less digits than its factorization.

261466228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470406 (or 470404 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 261466228 is about 16169.9173776492. The cubic root of 261466228 is about 639.4479516879.

It can be divided in two parts, 261 and 466228, that added together give a square (466489 = 683²).

The spelling of 261466228 in words is "two hundred sixty-one million, four hundred sixty-six thousand, two hundred twenty-eight".