2745398256 has 80 divisors (see below), whose sum is σ = 7183587840. Its totient is φ = 903409920.

The previous prime is 2745398239. The next prime is 2745398267. The reversal of 2745398256 is 6528935472.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2745398199 and 2745398208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2080765 + ... + 2082083.

It is an arithmetic number, because the mean of its divisors is an integer number (89794848).

Almost surely, 2^2745398256 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 2745398256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3591793920).

2745398256 is an abundant number, since it is smaller than the sum of its proper divisors (4438189584).

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

2745398256 is a wasteful number, since it uses less digits than its factorization.

2745398256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854 (or 1848 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 51.

The square root of 2745398256 is about 52396.5481305782. The cubic root of 2745398256 is about 1400.2377582593.

The spelling of 2745398256 in words is "two billion, seven hundred forty-five million, three hundred ninety-eight thousand, two hundred fifty-six".