2261660874 has 64 divisors (see below), whose sum is σ = 5150355840. Its totient is φ = 655800320.

The previous prime is 2261660857. The next prime is 2261660887. The reversal of 2261660874 is 4780661622.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211054 + ... + 221510.

It is an arithmetic number, because the mean of its divisors is an integer number (80474310).

Almost surely, 2^2261660874 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2261660874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2575177920).

2261660874 is an abundant number, since it is smaller than the sum of its proper divisors (2888694966).

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

2261660874 is a wasteful number, since it uses less digits than its factorization.

2261660874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10615.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 2261660874 is about 47556.9224614041. The cubic root of 2261660874 is about 1312.6305113938.

The spelling of 2261660874 in words is "two billion, two hundred sixty-one million, six hundred sixty thousand, eight hundred seventy-four".