2278343808 has 512 divisors, whose sum is σ = 8122464000. Its totient is φ = 621084672.

The previous prime is 2278343737. The next prime is 2278343891. The reversal of 2278343808 is 8083438722.

2278343808 is a `hidden beast` number, since 227 + 8 + 343 + 80 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14511666 + ... + 14511822.

Almost surely, 2^2278343808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2278343808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4061232000).

2278343808 is an abundant number, since it is smaller than the sum of its proper divisors (5844120192).

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

2278343808 is a wasteful number, since it uses less digits than its factorization.

2278343808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 2278343808 is about 47731.9998323976. Note that the first 3 decimals coincide. The cubic root of 2278343808 is about 1315.8501074956.

The spelling of 2278343808 in words is "two billion, two hundred seventy-eight million, three hundred forty-three thousand, eight hundred eight".