2002779443 has 4 divisors (see below), whose sum is σ = 2288890800. Its totient is φ = 1716668088.

The previous prime is 2002779437. The next prime is 2002779461. The reversal of 2002779443 is 3449772002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002779443 is a prime.

It is a super-2 number, since 2×2002779443² = 8022250994606780498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2002779397 and 2002779406.

It is not an unprimeable number, because it can be changed into a prime (2002779403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143055668 + ... + 143055681.

It is an arithmetic number, because the mean of its divisors is an integer number (572222700).

Almost surely, 2^2002779443 is an apocalyptic number.

2002779443 is a deficient number, since it is larger than the sum of its proper divisors (286111357).

2002779443 is an equidigital number, since it uses as much as digits as its factorization.

2002779443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286111356.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 2002779443 is about 44752.4238784895. The cubic root of 2002779443 is about 1260.5044261919.

The spelling of 2002779443 in words is "two billion, two million, seven hundred seventy-nine thousand, four hundred forty-three".