2745004320 has 144 divisors (see below), whose sum is σ = 9384403392. Its totient is φ = 730667520.

The previous prime is 2745004307. The next prime is 2745004397. The reversal of 2745004320 is 234005472.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 982125 + ... + 984915.

It is an arithmetic number, because the mean of its divisors is an integer number (65169468).

Almost surely, 2^2745004320 is an apocalyptic number.

2745004320 is a gapful number since it is divisible by the number (20) 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 2745004320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4692201696).

2745004320 is an abundant number, since it is smaller than the sum of its proper divisors (6639399072).

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

2745004320 is a wasteful number, since it uses less digits than its factorization.

2745004320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3495 (or 3484 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 2745004320 is about 52392.7888167828. The cubic root of 2745004320 is about 1400.1707818871.

Adding to 2745004320 its reverse (234005472), we get a palindrome (2979009792).

The spelling of 2745004320 in words is "two billion, seven hundred forty-five million, four thousand, three hundred twenty".