2745649830 has 256 divisors, whose sum is σ = 8493465600. Its totient is φ = 563068800.

The previous prime is 2745649811. The next prime is 2745649831. The reversal of 2745649830 is 389465472.

2745649830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2745649830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745649831) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 14375035 + ... + 14375225.

It is an arithmetic number, because the mean of its divisors is an integer number (33177600).

Almost surely, 2^2745649830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2745649830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4246732800).

2745649830 is an abundant number, since it is smaller than the sum of its proper divisors (5747815770).

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

2745649830 is a wasteful number, since it uses less digits than its factorization.

2745649830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The square root of 2745649830 is about 52398.9487489969. The cubic root of 2745649830 is about 1400.2805271185.

The spelling of 2745649830 in words is "two billion, seven hundred forty-five million, six hundred forty-nine thousand, eight hundred thirty".