261132048 has 60 divisors (see below), whose sum is σ = 769278640. Its totient is φ = 82461888.

The previous prime is 261131999. The next prime is 261132049. The reversal of 261132048 is 840231162.

261132048 is a `hidden beast` number, since 2 + 611 + 3 + 2 + 0 + 48 = 666.

It is not an unprimeable number, because it can be changed into a prime (261132049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44986 + ... + 50457.

Almost surely, 2^261132048 is an apocalyptic number.

It is an amenable number.

261132048 is an abundant number, since it is smaller than the sum of its proper divisors (508146592).

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

261132048 is a wasteful number, since it uses less digits than its factorization.

261132048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95476 (or 95467 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 261132048 is about 16159.5806876292. The cubic root of 261132048 is about 639.1754093891.

The spelling of 261132048 in words is "two hundred sixty-one million, one hundred thirty-two thousand, forty-eight".