2642818540 has 12 divisors (see below), whose sum is σ = 5549918976. Its totient is φ = 1057127408.

The previous prime is 2642818483. The next prime is 2642818543. The reversal of 2642818540 is 458182462.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2642818493 and 2642818502.

It is not an unprimeable number, because it can be changed into a prime (2642818543) 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 3 ways as a sum of consecutive naturals, for example, 66070444 + ... + 66070483.

It is an arithmetic number, because the mean of its divisors is an integer number (462493248).

Almost surely, 2^2642818540 is an apocalyptic number.

2642818540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2642818540 is an abundant number, since it is smaller than the sum of its proper divisors (2907100436).

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

2642818540 is a wasteful number, since it uses less digits than its factorization.

2642818540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132140936 (or 132140934 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 2642818540 is about 51408.3508780432. The cubic root of 2642818540 is about 1382.5763221863.

The spelling of 2642818540 in words is "two billion, six hundred forty-two million, eight hundred eighteen thousand, five hundred forty".