2261906874 has 12 divisors (see below), whose sum is σ = 4900798266. Its totient is φ = 753968952.

The previous prime is 2261906873. The next prime is 2261906879. The reversal of 2261906874 is 4786091622.

It is a happy number.

2261906874 is a `hidden beast` number, since 22 + 619 + 0 + 6 + 8 + 7 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1303571025 + 958335849 = 36105^2 + 30957^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2261906873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62830729 + ... + 62830764.

Almost surely, 2^2261906874 is an apocalyptic number.

2261906874 is an abundant number, since it is smaller than the sum of its proper divisors (2638891392).

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

2261906874 is a wasteful number, since it uses less digits than its factorization.

2261906874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125661501 (or 125661498 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 2261906874 is about 47559.5087653352. The cubic root of 2261906874 is about 1312.6781011102.

The spelling of 2261906874 in words is "two billion, two hundred sixty-one million, nine hundred six thousand, eight hundred seventy-four".