2730887720 has 48 divisors (see below), whose sum is σ = 6753880980. Its totient is φ = 993048320.

The previous prime is 2730887717. The next prime is 2730887729. The reversal of 2730887720 is 277880372.

It can be written as a sum of positive squares in 2 ways, for example, as 2625332644 + 105555076 = 51238^2 + 10274^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2730887729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277277 + ... + 286956.

Almost surely, 2^2730887720 is an apocalyptic number.

2730887720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2730887720 is an abundant number, since it is smaller than the sum of its proper divisors (4022993260).

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

2730887720 is a wasteful number, since it uses less digits than its factorization.

2730887720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564266 (or 564251 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 44.

The square root of 2730887720 is about 52257.8962454479. The cubic root of 2730887720 is about 1397.7664589420.

The spelling of 2730887720 in words is "two billion, seven hundred thirty million, eight hundred eighty-seven thousand, seven hundred twenty".