2287221948 has 72 divisors (see below), whose sum is σ = 6540817920. Its totient is φ = 693094320.

The previous prime is 2287221931. The next prime is 2287221977. The reversal of 2287221948 is 8491227822.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96268 + ... + 117651.

Almost surely, 2^2287221948 is an apocalyptic number.

It is an amenable number.

2287221948 is an abundant number, since it is smaller than the sum of its proper divisors (4253595972).

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

2287221948 is a wasteful number, since it uses less digits than its factorization.

2287221948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213949 (or 213935 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 2287221948 is about 47824.9092837613. The cubic root of 2287221948 is about 1317.5570725660.

The spelling of 2287221948 in words is "two billion, two hundred eighty-seven million, two hundred twenty-one thousand, nine hundred forty-eight".