2749269840 has 80 divisors (see below), whose sum is σ = 8528079168. Its totient is φ = 732679168.

The previous prime is 2749269829. The next prime is 2749269851. The reversal of 2749269840 is 489629472.

2749269840 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2749269829) and next prime (2749269851).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 571927 + ... + 576713.

Almost surely, 2^2749269840 is an apocalyptic number.

2749269840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2749269840 is an abundant number, since it is smaller than the sum of its proper divisors (5778809328).

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

2749269840 is a wasteful number, since it uses less digits than its factorization.

2749269840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7196 (or 7190 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 2749269840 is about 52433.4801438928. The cubic root of 2749269840 is about 1400.8956581678.

The spelling of 2749269840 in words is "two billion, seven hundred forty-nine million, two hundred sixty-nine thousand, eight hundred forty".