2940638311 has 8 divisors (see below), whose sum is σ = 3211445664. Its totient is φ = 2676203040.

The previous prime is 2940638279. The next prime is 2940638321. The reversal of 2940638311 is 1138360492.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2940638311 - 2⁵ = 2940638279 is a prime.

It is a super-2 number, since 2×2940638311² = 17294707352241865442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2940638321) 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 7 ways as a sum of consecutive naturals, for example, 1592056 + ... + 1593901.

It is an arithmetic number, because the mean of its divisors is an integer number (401430708).

Almost surely, 2^2940638311 is an apocalyptic number.

2940638311 is a deficient number, since it is larger than the sum of its proper divisors (270807353).

2940638311 is a wasteful number, since it uses less digits than its factorization.

2940638311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186041.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 2940638311 is about 54227.6526414338. The cubic root of 2940638311 is about 1432.6734201364.

The spelling of 2940638311 in words is "two billion, nine hundred forty million, six hundred thirty-eight thousand, three hundred eleven".