261082208 has 36 divisors (see below), whose sum is σ = 518863212. Its totient is φ = 129317760.

The previous prime is 261082207. The next prime is 261082259. The reversal of 261082208 is 802280162.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261082201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 788603 + ... + 788933.

It is an arithmetic number, because the mean of its divisors is an integer number (14412867).

Almost surely, 2^261082208 is an apocalyptic number.

It is an amenable number.

261082208 is a deficient number, since it is larger than the sum of its proper divisors (257781004).

261082208 is an equidigital number, since it uses as much as digits as its factorization.

261082208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 261082208 is about 16158.0384948174. The cubic root of 261082208 is about 639.1347421869.

The spelling of 261082208 in words is "two hundred sixty-one million, eighty-two thousand, two hundred eight".