2947255388 has 96 divisors (see below), whose sum is σ = 6830853120. Its totient is φ = 1077212160.

The previous prime is 2947255361. The next prime is 2947255391. The reversal of 2947255388 is 8835527492.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2036081 + ... + 2037527.

It is an arithmetic number, because the mean of its divisors is an integer number (71154720).

Almost surely, 2^2947255388 is an apocalyptic number.

2947255388 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 2947255388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3415426560).

2947255388 is an abundant number, since it is smaller than the sum of its proper divisors (3883597732).

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

2947255388 is a wasteful number, since it uses less digits than its factorization.

2947255388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875 (or 1873 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 53.

The square root of 2947255388 is about 54288.6303750610. The cubic root of 2947255388 is about 1433.7472242383.

The spelling of 2947255388 in words is "two billion, nine hundred forty-seven million, two hundred fifty-five thousand, three hundred eighty-eight".