2261217284 has 24 divisors (see below), whose sum is σ = 4167979200. Its totient is φ = 1070439840.

The previous prime is 2261217247. The next prime is 2261217353. The reversal of 2261217284 is 4827121622.

It is a super-2 number, since 2×2261217284² = 10226207210920673312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127649 + ... + 144279.

It is an arithmetic number, because the mean of its divisors is an integer number (173665800).

Almost surely, 2^2261217284 is an apocalyptic number.

It is an amenable number.

2261217284 is a deficient number, since it is larger than the sum of its proper divisors (1906761916).

2261217284 is a wasteful number, since it uses less digits than its factorization.

2261217284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18443 (or 18441 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 2261217284 is about 47552.2584532007. The cubic root of 2261217284 is about 1312.5446883529.

The spelling of 2261217284 in words is "two billion, two hundred sixty-one million, two hundred seventeen thousand, two hundred eighty-four".