261092798 has 8 divisors (see below), whose sum is σ = 393690240. Its totient is φ = 129862720.

The previous prime is 261092791. The next prime is 261092807. The reversal of 261092798 is 897290162.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261092791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341363 + ... + 342126.

It is an arithmetic number, because the mean of its divisors is an integer number (49211280).

Almost surely, 2^261092798 is an apocalyptic number.

261092798 is a deficient number, since it is larger than the sum of its proper divisors (132597442).

261092798 is a wasteful number, since it uses less digits than its factorization.

261092798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683682.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 261092798 is about 16158.3661921619. The cubic root of 261092798 is about 639.1433835844.

The spelling of 261092798 in words is "two hundred sixty-one million, ninety-two thousand, seven hundred ninety-eight".