2273509280 has 192 divisors, whose sum is σ = 6571901952. Its totient is φ = 725483520.

The previous prime is 2273509261. The next prime is 2273509283. The reversal of 2273509280 is 829053722.

2273509280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2273509280² = 10337688892492236800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2273509283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1846265 + ... + 1847495.

It is an arithmetic number, because the mean of its divisors is an integer number (34228656).

Almost surely, 2^2273509280 is an apocalyptic number.

2273509280 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 2273509280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3285950976).

2273509280 is an abundant number, since it is smaller than the sum of its proper divisors (4298392672).

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

2273509280 is a wasteful number, since it uses less digits than its factorization.

2273509280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367 (or 1359 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 2273509280 is about 47681.3305183486. The cubic root of 2273509280 is about 1314.9187263933.

The spelling of 2273509280 in words is "two billion, two hundred seventy-three million, five hundred nine thousand, two hundred eighty".