261082382 has 16 divisors (see below), whose sum is σ = 449712000. Its totient is φ = 112427640.

The previous prime is 261082373. The next prime is 261082411. The reversal of 261082382 is 283280162.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 311882 + ... + 312717.

It is an arithmetic number, because the mean of its divisors is an integer number (28107000).

Almost surely, 2^261082382 is an apocalyptic number.

261082382 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

261082382 is a deficient number, since it is larger than the sum of its proper divisors (188629618).

261082382 is a wasteful number, since it uses less digits than its factorization.

261082382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624631.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 261082382 is about 16158.0438791334. The cubic root of 261082382 is about 639.1348841721.

The spelling of 261082382 in words is "two hundred sixty-one million, eighty-two thousand, three hundred eighty-two".