2642816140 has 12 divisors (see below), whose sum is σ = 5549913936. Its totient is φ = 1057126448.

The previous prime is 2642816083. The next prime is 2642816161. The reversal of 2642816140 is 416182462.

It is a junction number, because it is equal to n+sod(n) for n = 2642816096 and 2642816105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66070384 + ... + 66070423.

It is an arithmetic number, because the mean of its divisors is an integer number (462492828).

Almost surely, 2^2642816140 is an apocalyptic number.

2642816140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2642816140 is an abundant number, since it is smaller than the sum of its proper divisors (2907097796).

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

2642816140 is a wasteful number, since it uses less digits than its factorization.

2642816140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132140816 (or 132140814 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 2642816140 is about 51408.3275355268. The cubic root of 2642816140 is about 1382.5759036705.

The spelling of 2642816140 in words is "two billion, six hundred forty-two million, eight hundred sixteen thousand, one hundred forty".