2273788380 has 96 divisors (see below), whose sum is σ = 6636704256. Its totient is φ = 581112576.

The previous prime is 2273788379. The next prime is 2273788393. The reversal of 2273788380 is 838873722.

It is a super-2 number, since 2×2273788380² = 10340227194046048800, 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 in 31 ways as a sum of consecutive naturals, for example, 141097 + ... + 156383.

It is an arithmetic number, because the mean of its divisors is an integer number (69132336).

Almost surely, 2^2273788380 is an apocalyptic number.

2273788380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2273788380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3318352128).

2273788380 is an abundant number, since it is smaller than the sum of its proper divisors (4362915876).

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

2273788380 is a wasteful number, since it uses less digits than its factorization.

2273788380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15403 (or 15401 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 48.

The square root of 2273788380 is about 47684.2571505523. The cubic root of 2273788380 is about 1314.9725314372.

It can be divided in two parts, 2273 and 788380, that added together give a triangular number (790653 = T₁₂₅₇).

The spelling of 2273788380 in words is "two billion, two hundred seventy-three million, seven hundred eighty-eight thousand, three hundred eighty".