261466958 has 24 divisors (see below), whose sum is σ = 419324040. Its totient is φ = 122127600.

The previous prime is 261466957. The next prime is 261466981. The reversal of 261466958 is 859664162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261466957) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 53393 + ... + 58083.

It is an arithmetic number, because the mean of its divisors is an integer number (17471835).

Almost surely, 2^261466958 is an apocalyptic number.

261466958 is a deficient number, since it is larger than the sum of its proper divisors (157857082).

261466958 is a wasteful number, since it uses less digits than its factorization.

261466958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4784 (or 4753 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 261466958 is about 16169.9399504142. The cubic root of 261466958 is about 639.4485467891.

The spelling of 261466958 in words is "two hundred sixty-one million, four hundred sixty-six thousand, nine hundred fifty-eight".