261834068 has 24 divisors (see below), whose sum is σ = 485837352. Its totient is φ = 123044864.

The previous prime is 261834061. The next prime is 261834071. The reversal of 261834068 is 860438162.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 219869584 + 41964484 = 14828^2 + 6478^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261834061) 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, 56030 + ... + 60522.

It is an arithmetic number, because the mean of its divisors is an integer number (20243223).

Almost surely, 2^261834068 is an apocalyptic number.

It is an amenable number.

261834068 is a deficient number, since it is larger than the sum of its proper divisors (224003284).

261834068 is a wasteful number, since it uses less digits than its factorization.

261834068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5371 (or 5369 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 261834068 is about 16181.2875878281. The cubic root of 261834068 is about 639.7476772264.

The spelling of 261834068 in words is "two hundred sixty-one million, eight hundred thirty-four thousand, sixty-eight".