261730362 has 8 divisors (see below), whose sum is σ = 523460736. Its totient is φ = 87243452.

The previous prime is 261730361. The next prime is 261730367. The reversal of 261730362 is 263037162.

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

261730362 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (261730361) 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, 21810858 + ... + 21810869.

It is an arithmetic number, because the mean of its divisors is an integer number (65432592).

Almost surely, 2^261730362 is an apocalyptic number.

261730362 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261730362 is a wasteful number, since it uses less digits than its factorization.

261730362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43621732.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 261730362 is about 16178.0827665085. The cubic root of 261730362 is about 639.6632033274.

The spelling of 261730362 in words is "two hundred sixty-one million, seven hundred thirty thousand, three hundred sixty-two".