227721948 has 24 divisors (see below), whose sum is σ = 535233552. Its totient is φ = 75352704.

The previous prime is 227721947. The next prime is 227721959. The reversal of 227721948 is 849127722.

227721948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227721941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67615 + ... + 70902.

It is an arithmetic number, because the mean of its divisors is an integer number (22301398).

Almost surely, 2^227721948 is an apocalyptic number.

It is an amenable number.

227721948 is an abundant number, since it is smaller than the sum of its proper divisors (307511604).

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

227721948 is a wasteful number, since it uses less digits than its factorization.

227721948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138661 (or 138659 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 227721948 is about 15090.4588399425. The cubic root of 227721948 is about 610.6630325345.

The spelling of 227721948 in words is "two hundred twenty-seven million, seven hundred twenty-one thousand, nine hundred forty-eight".