2806774442 has 8 divisors (see below), whose sum is σ = 4231533636. Its totient is φ = 1396263232.

The previous prime is 2806774427. The next prime is 2806774457. The reversal of 2806774442 is 2444776082.

It is a Cunningham number, because it is equal to 52979²+1.

It is an interprime number because it is at equal distance from previous prime (2806774427) and next prime (2806774457).

It can be written as a sum of positive squares in 2 ways, for example, as 2806774441 + 1 = 52979^2 + 1^2 .

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

It is a super-2 number, since 2×2806774442² = 15755965536528822728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2806774393 and 2806774402.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3561503 + ... + 3562290.

Almost surely, 2^2806774442 is an apocalyptic number.

2806774442 is a deficient number, since it is larger than the sum of its proper divisors (1424759194).

2806774442 is a wasteful number, since it uses less digits than its factorization.

2806774442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7123992.

The product of its (nonzero) digits is 602112, while the sum is 44.

The square root of 2806774442 is about 52979.0000094377. Note that the first 5 decimals coincide. The cubic root of 2806774442 is about 1410.5955336880.

The spelling of 2806774442 in words is "two billion, eight hundred six million, seven hundred seventy-four thousand, four hundred forty-two".