2622641540 has 48 divisors (see below), whose sum is σ = 5706107904. Its totient is φ = 1011484800.

The previous prime is 2622641533. The next prime is 2622641543. The reversal of 2622641540 is 451462262.

It is a junction number, because it is equal to n+sod(n) for n = 2622641497 and 2622641506.

It is not an unprimeable number, because it can be changed into a prime (2622641543) 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, 164105 + ... + 179375.

It is an arithmetic number, because the mean of its divisors is an integer number (118877248).

Almost surely, 2^2622641540 is an apocalyptic number.

2622641540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2622641540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2853053952).

2622641540 is an abundant number, since it is smaller than the sum of its proper divisors (3083466364).

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

2622641540 is a wasteful number, since it uses less digits than its factorization.

2622641540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15588 (or 15586 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 2622641540 is about 51211.7324448217. The cubic root of 2622641540 is about 1379.0488334609.

The spelling of 2622641540 in words is "two billion, six hundred twenty-two million, six hundred forty-one thousand, five hundred forty".