2730120240 has 80 divisors (see below), whose sum is σ = 8831363328. Its totient is φ = 696377088.

The previous prime is 2730120229. The next prime is 2730120247. The reversal of 2730120240 is 420210372.

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

It is not an unprimeable number, because it can be changed into a prime (2730120247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241774 + ... + 252813.

Almost surely, 2^2730120240 is an apocalyptic number.

2730120240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2730120240 is an abundant number, since it is smaller than the sum of its proper divisors (6101243088).

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

2730120240 is a wasteful number, since it uses less digits than its factorization.

2730120240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494626 (or 494620 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 2730120240 is about 52250.5525329637. The cubic root of 2730120240 is about 1397.6355053935.

The spelling of 2730120240 in words is "two billion, seven hundred thirty million, one hundred twenty thousand, two hundred forty".