2273220280 has 64 divisors (see below), whose sum is σ = 5421543840. Its totient is φ = 854863872.

The previous prime is 2273220259. The next prime is 2273220311. The reversal of 2273220280 is 820223722.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1191087 + ... + 1192993.

Almost surely, 2^2273220280 is an apocalyptic number.

2273220280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2273220280 is an abundant number, since it is smaller than the sum of its proper divisors (3148323560).

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

2273220280 is a wasteful number, since it uses less digits than its factorization.

2273220280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688 (or 3684 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 2273220280 is about 47678.2998857971. The cubic root of 2273220280 is about 1314.8630081815.

The spelling of 2273220280 in words is "two billion, two hundred seventy-three million, two hundred twenty thousand, two hundred eighty".