261038874 has 16 divisors (see below), whose sum is σ = 527147712. Its totient is φ = 86167968.

The previous prime is 261038873. The next prime is 261038881. The reversal of 261038874 is 478830162.

It is not an unprimeable number, because it can be changed into a prime (261038873) 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, 210579 + ... + 211814.

It is an arithmetic number, because the mean of its divisors is an integer number (32946732).

Almost surely, 2^261038874 is an apocalyptic number.

261038874 is an abundant number, since it is smaller than the sum of its proper divisors (266108838).

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

261038874 is a wasteful number, since it uses less digits than its factorization.

261038874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422501.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 261038874 is about 16156.6974967040. The cubic root of 261038874 is about 639.0993793823.

The spelling of 261038874 in words is "two hundred sixty-one million, thirty-eight thousand, eight hundred seventy-four".