261006036 has 12 divisors (see below), whose sum is σ = 609014112. Its totient is φ = 87002008.

The previous prime is 261006023. The next prime is 261006043. The reversal of 261006036 is 630600162.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 261005997 and 261006015.

It is a congruent number.

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, 10875240 + ... + 10875263.

It is an arithmetic number, because the mean of its divisors is an integer number (50751176).

Almost surely, 2^261006036 is an apocalyptic number.

It is an amenable number.

261006036 is an abundant number, since it is smaller than the sum of its proper divisors (348008076).

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

261006036 is a wasteful number, since it uses less digits than its factorization.

261006036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21750510 (or 21750508 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 261006036 is about 16155.6812298337. The cubic root of 261006036 is about 639.0725792545.

Adding to 261006036 its reverse (630600162), we get a palindrome (891606198).

The spelling of 261006036 in words is "two hundred sixty-one million, six thousand, thirty-six".