2487918240 has 120 divisors (see below), whose sum is σ = 8780323860. Its totient is φ = 663441408.

The previous prime is 2487918239. The next prime is 2487918259. The reversal of 2487918240 is 428197842.

2487918240 is a `hidden beast` number, since 2 + 487 + 91 + 82 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2160018576 + 327899664 = 46476^2 + 18108^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 83025 + ... + 108944.

Almost surely, 2^2487918240 is an apocalyptic number.

2487918240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2487918240 is an abundant number, since it is smaller than the sum of its proper divisors (6292405620).

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

2487918240 is a wasteful number, since it uses less digits than its factorization.

2487918240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191996 (or 191979 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 2487918240 is about 49879.0360772940. The cubic root of 2487918240 is about 1355.0189473710.

The spelling of 2487918240 in words is "two billion, four hundred eighty-seven million, nine hundred eighteen thousand, two hundred forty".