2278999968 has 144 divisors (see below), whose sum is σ = 7066664640. Its totient is φ = 629959680.

The previous prime is 2278999963. The next prime is 2279000023. The reversal of 2278999968 is 8699998722.

2278999968 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2278999963) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 644028 + ... + 647556.

It is an arithmetic number, because the mean of its divisors is an integer number (49074060).

Almost surely, 2^2278999968 is an apocalyptic number.

2278999968 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 2278999968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3533332320).

2278999968 is an abundant number, since it is smaller than the sum of its proper divisors (4787664672).

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

2278999968 is a wasteful number, since it uses less digits than its factorization.

2278999968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3611 (or 3572 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 69.

The square root of 2278999968 is about 47738.8727139634. The cubic root of 2278999968 is about 1315.9764164003.

The spelling of 2278999968 in words is "two billion, two hundred seventy-eight million, nine hundred ninety-nine thousand, nine hundred sixty-eight".