2478587540 has 48 divisors (see below), whose sum is σ = 6115011840. Its totient is φ = 831972480.

The previous prime is 2478587521. The next prime is 2478587543. The reversal of 2478587540 is 457858742.

It is a super-2 number, since 2×2478587540² = 12286792386886503200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478587543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430460 + ... + 436179.

It is an arithmetic number, because the mean of its divisors is an integer number (127396080).

Almost surely, 2^2478587540 is an apocalyptic number.

2478587540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2478587540 is an abundant number, since it is smaller than the sum of its proper divisors (3636424300).

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

2478587540 is a wasteful number, since it uses less digits than its factorization.

2478587540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866672 (or 866670 counting only the distinct ones).

The product of its (nonzero) digits is 2508800, while the sum is 50.

The square root of 2478587540 is about 49785.4149324880. The cubic root of 2478587540 is about 1353.3228688447.

The spelling of 2478587540 in words is "two billion, four hundred seventy-eight million, five hundred eighty-seven thousand, five hundred forty".