2273545872 has 240 divisors, whose sum is σ = 7054215168. Its totient is φ = 679311360.

The previous prime is 2273545861. The next prime is 2273545913. The reversal of 2273545872 is 2785453722.

2273545872 is a `hidden beast` number, since 2 + 27 + 3 + 545 + 87 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17355247 + ... + 17355377.

Almost surely, 2^2273545872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2273545872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3527107584).

2273545872 is an abundant number, since it is smaller than the sum of its proper divisors (4780669296).

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

2273545872 is a wasteful number, since it uses less digits than its factorization.

2273545872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358 (or 349 counting only the distinct ones).

The product of its digits is 940800, while the sum is 45.

The square root of 2273545872 is about 47681.7142309292. The cubic root of 2273545872 is about 1314.9257808690.

The spelling of 2273545872 in words is "two billion, two hundred seventy-three million, five hundred forty-five thousand, eight hundred seventy-two".