2947928256 has 336 divisors, whose sum is σ = 10789985024. Its totient is φ = 777102336.

The previous prime is 2947928237. The next prime is 2947928257. The reversal of 2947928256 is 6528297492.

2947928256 is a `hidden beast` number, since 294 + 79 + 282 + 5 + 6 = 666.

2947928256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2947928257) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1414191 + ... + 1416273.

Almost surely, 2^2947928256 is an apocalyptic number.

2947928256 is a gapful number since it is divisible by the number (26) 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 2947928256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5394992512).

2947928256 is an abundant number, since it is smaller than the sum of its proper divisors (7842056768).

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

2947928256 is a wasteful number, since it uses less digits than its factorization.

2947928256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130 (or 2108 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 2947928256 is about 54294.8271569217. The cubic root of 2947928256 is about 1433.8563256556.

The spelling of 2947928256 in words is "two billion, nine hundred forty-seven million, nine hundred twenty-eight thousand, two hundred fifty-six".