2228979648 has 112 divisors (see below), whose sum is σ = 6896933120. Its totient is φ = 622024704.

The previous prime is 2228979619. The next prime is 2228979673. The reversal of 2228979648 is 8469798222.

It is a tau number, because it is divible by the number of its divisors (112).

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, 38508 + ... + 77076.

It is an arithmetic number, because the mean of its divisors is an integer number (61579760).

Almost surely, 2^2228979648 is an apocalyptic number.

2228979648 is a gapful number since it is divisible by the number (28) 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 2228979648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3448466560).

2228979648 is an abundant number, since it is smaller than the sum of its proper divisors (4667953472).

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

2228979648 is a wasteful number, since it uses less digits than its factorization.

2228979648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38634 (or 38624 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 57.

The square root of 2228979648 is about 47212.0709988452. The cubic root of 2228979648 is about 1306.2772632970.

The spelling of 2228979648 in words is "two billion, two hundred twenty-eight million, nine hundred seventy-nine thousand, six hundred forty-eight".