2745433128 has 32 divisors (see below), whose sum is σ = 6867590400. Its totient is φ = 914610048.

The previous prime is 2745433121. The next prime is 2745433133. The reversal of 2745433128 is 8213345472.

2745433128 is digitally balanced in base 2, because in such base 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 (2745433121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9700 + ... + 74732.

It is an arithmetic number, because the mean of its divisors is an integer number (214612200).

Almost surely, 2^2745433128 is an apocalyptic number.

It is an amenable number.

2745433128 is an abundant number, since it is smaller than the sum of its proper divisors (4122157272).

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

2745433128 is a wasteful number, since it uses less digits than its factorization.

2745433128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66801 (or 66797 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 2745433128 is about 52396.8808995345. The cubic root of 2745433128 is about 1400.2436868326.

The spelling of 2745433128 in words is "two billion, seven hundred forty-five million, four hundred thirty-three thousand, one hundred twenty-eight".