261043466 has 16 divisors (see below), whose sum is σ = 419598144. Its totient is φ = 121362624.

The previous prime is 261043463. The next prime is 261043469. The reversal of 261043466 is 664340162.

261043466 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (261043463) and next prime (261043469).

It is a super-2 number, since 2×261043466² = 136287382282586312, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (261043463) 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, 43430 + ... + 49073.

It is an arithmetic number, because the mean of its divisors is an integer number (26224884).

Almost surely, 2^261043466 is an apocalyptic number.

261043466 is a deficient number, since it is larger than the sum of its proper divisors (158554678).

261043466 is a wasteful number, since it uses less digits than its factorization.

261043466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92605.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 261043466 is about 16156.8396043286. The cubic root of 261043466 is about 639.1031268792.

The spelling of 261043466 in words is "two hundred sixty-one million, forty-three thousand, four hundred sixty-six".