2940643819 has 8 divisors (see below), whose sum is σ = 3042722160. Its totient is φ = 2838610656.

The previous prime is 2940643807. The next prime is 2940643847. The reversal of 2940643819 is 9183460492.

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 2940643819 - 2⁷ = 2940643691 is a prime.

It is a super-2 number, since 2×2940643819² = 17294772140445809522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2940643859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171532 + ... + 187894.

It is an arithmetic number, because the mean of its divisors is an integer number (380340270).

Almost surely, 2^2940643819 is an apocalyptic number.

2940643819 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2940643819 is a deficient number, since it is larger than the sum of its proper divisors (102078341).

2940643819 is a wasteful number, since it uses less digits than its factorization.

2940643819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22589.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 2940643819 is about 54227.7034273073. The cubic root of 2940643819 is about 1432.6743146316.

The spelling of 2940643819 in words is "two billion, nine hundred forty million, six hundred forty-three thousand, eight hundred nineteen".