261054270 has 24 divisors (see below), whose sum is σ = 678741336. Its totient is φ = 69614448.

The previous prime is 261054253. The next prime is 261054289. The reversal of 261054270 is 72450162.

261054270 is a `hidden beast` number, since 2 + 610 + 5 + 42 + 7 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1450212 + ... + 1450391.

It is an arithmetic number, because the mean of its divisors is an integer number (28280889).

Almost surely, 2^261054270 is an apocalyptic number.

261054270 is an abundant number, since it is smaller than the sum of its proper divisors (417687066).

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

261054270 is a wasteful number, since it uses less digits than its factorization.

261054270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900616 (or 2900613 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 261054270 is about 16157.1739484354. The cubic root of 261054270 is about 639.1119437696. Note that the first 3 decimals are identical.

The spelling of 261054270 in words is "two hundred sixty-one million, fifty-four thousand, two hundred seventy".