2747360640 has 128 divisors (see below), whose sum is σ = 8772261120. Its totient is φ = 731371520.

The previous prime is 2747360611. The next prime is 2747360641. The reversal of 2747360640 is 460637472.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2747360641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1817485 + ... + 1818995.

It is an arithmetic number, because the mean of its divisors is an integer number (68533290).

Almost surely, 2^2747360640 is an apocalyptic number.

2747360640 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 2747360640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4386130560).

2747360640 is an abundant number, since it is smaller than the sum of its proper divisors (6024900480).

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

2747360640 is a wasteful number, since it uses less digits than its factorization.

2747360640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480 (or 2468 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 39.

The square root of 2747360640 is about 52415.2710572024. The cubic root of 2747360640 is about 1400.5713042486.

The spelling of 2747360640 in words is "two billion, seven hundred forty-seven million, three hundred sixty thousand, six hundred forty".