4078281216 has 80 divisors (see below), whose sum is σ = 10964923200. Its totient is φ = 1346899968.

The previous prime is 4078281197. The next prime is 4078281247. The reversal of 4078281216 is 6121828704.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155245 + ... + 179603.

It is an arithmetic number, because the mean of its divisors is an integer number (137061540).

Almost surely, 2^4078281216 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 4078281216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5482461600).

4078281216 is an abundant number, since it is smaller than the sum of its proper divisors (6886641984).

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

4078281216 is a wasteful number, since it uses less digits than its factorization.

4078281216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24489 (or 24473 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 4078281216 is about 63861.4219697620. The cubic root of 4078281216 is about 1597.6895318582.

The spelling of 4078281216 in words is "four billion, seventy-eight million, two hundred eighty-one thousand, two hundred sixteen".