2940636780 has 144 divisors (see below), whose sum is σ = 9162002304. Its totient is φ = 763084800.

The previous prime is 2940636773. The next prime is 2940636841. The reversal of 2940636780 is 876360492.

2940636780 is a `hidden beast` number, since 2 + 9 + 4 + 0 + 636 + 7 + 8 + 0 = 666.

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 (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1631880 + ... + 1633680.

It is an arithmetic number, because the mean of its divisors is an integer number (63625016).

Almost surely, 2^2940636780 is an apocalyptic number.

2940636780 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 2940636780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4581001152).

2940636780 is an abundant number, since it is smaller than the sum of its proper divisors (6221365524).

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

2940636780 is a wasteful number, since it uses less digits than its factorization.

2940636780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056 (or 2051 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 2940636780 is about 54227.6385250178. The cubic root of 2940636780 is about 1432.6731715029.

The spelling of 2940636780 in words is "two billion, nine hundred forty million, six hundred thirty-six thousand, seven hundred eighty".