261206084 has 12 divisors (see below), whose sum is σ = 457250304. Its totient is φ = 130563144.

The previous prime is 261206059. The next prime is 261206111. The reversal of 261206084 is 480602162.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8597 + ... + 24419.

It is an arithmetic number, because the mean of its divisors is an integer number (38104192).

Almost surely, 2^261206084 is an apocalyptic number.

It is an amenable number.

261206084 is a deficient number, since it is larger than the sum of its proper divisors (196044220).

261206084 is a wasteful number, since it uses less digits than its factorization.

261206084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19954 (or 19952 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 261206084 is about 16161.8713025441. The cubic root of 261206084 is about 639.2358098894.

The spelling of 261206084 in words is "two hundred sixty-one million, two hundred six thousand, eighty-four".