261250346 has 16 divisors (see below), whose sum is σ = 457387776. Its totient is φ = 109581936.

The previous prime is 261250331. The next prime is 261250349. The reversal of 261250346 is 643052162.

It is not an unprimeable number, because it can be changed into a prime (261250349) 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, 197861 + ... + 199176.

It is an arithmetic number, because the mean of its divisors is an integer number (28586736).

Almost surely, 2^261250346 is an apocalyptic number.

261250346 is a deficient number, since it is larger than the sum of its proper divisors (196137430).

261250346 is a wasteful number, since it uses less digits than its factorization.

261250346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397093.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 261250346 is about 16163.2405785474. The cubic root of 261250346 is about 639.2719145327.

The spelling of 261250346 in words is "two hundred sixty-one million, two hundred fifty thousand, three hundred forty-six".