2261006872 has 8 divisors (see below), whose sum is σ = 4239387900. Its totient is φ = 1130503432.

The previous prime is 2261006861. The next prime is 2261006903. The reversal of 2261006872 is 2786001622.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2261006872² = 10224304150462448768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141312922 + ... + 141312937.

Almost surely, 2^2261006872 is an apocalyptic number.

It is an amenable number.

2261006872 is a deficient number, since it is larger than the sum of its proper divisors (1978381028).

2261006872 is a wasteful number, since it uses less digits than its factorization.

2261006872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282625865 (or 282625861 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 2261006872 is about 47550.0459726381. The cubic root of 2261006872 is about 1312.5039752200.

The spelling of 2261006872 in words is "two billion, two hundred sixty-one million, six thousand, eight hundred seventy-two".