2261072784 has 40 divisors (see below), whose sum is σ = 5976949792. Its totient is φ = 736162560.

The previous prime is 2261072767. The next prime is 2261072809. The reversal of 2261072784 is 4872701622.

It is a super-3 number, since 3×2261072784³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 545677 + ... + 549804.

Almost surely, 2^2261072784 is an apocalyptic number.

2261072784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2261072784 is an abundant number, since it is smaller than the sum of its proper divisors (3715877008).

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

2261072784 is a wasteful number, since it uses less digits than its factorization.

2261072784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095535 (or 1095529 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 2261072784 is about 47550.7390478844. The cubic root of 2261072784 is about 1312.5167289659.

The spelling of 2261072784 in words is "two billion, two hundred sixty-one million, seventy-two thousand, seven hundred eighty-four".