2745597140 has 96 divisors (see below), whose sum is σ = 6788831616. Its totient is φ = 919549440.

The previous prime is 2745597139. The next prime is 2745597157. The reversal of 2745597140 is 417955472.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 2745597091 and 2745597100.

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 31 ways as a sum of consecutive naturals, for example, 1838234 + ... + 1839726.

It is an arithmetic number, because the mean of its divisors is an integer number (70716996).

Almost surely, 2^2745597140 is an apocalyptic number.

2745597140 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 2745597140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3394415808).

2745597140 is an abundant number, since it is smaller than the sum of its proper divisors (4043234476).

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

2745597140 is a wasteful number, since it uses less digits than its factorization.

2745597140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169 (or 2167 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 44.

The square root of 2745597140 is about 52398.4459693224. The cubic root of 2745597140 is about 1400.2715697669.

The spelling of 2745597140 in words is "two billion, seven hundred forty-five million, five hundred ninety-seven thousand, one hundred forty".