2814442921 has 4 divisors (see below), whose sum is σ = 2814819844. Its totient is φ = 2814066000.

The previous prime is 2814442913. The next prime is 2814442927. The reversal of 2814442921 is 1292444182.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2533712896 + 280730025 = 50336^2 + 16755^2 .

It is a cyclic number.

It is not a de Polignac number, because 2814442921 - 2³ = 2814442913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2814442927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177030 + ... + 192271.

It is an arithmetic number, because the mean of its divisors is an integer number (703704961).

Almost surely, 2^2814442921 is an apocalyptic number.

It is an amenable number.

2814442921 is a deficient number, since it is larger than the sum of its proper divisors (376923).

2814442921 is an equidigital number, since it uses as much as digits as its factorization.

2814442921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376922.

The product of its digits is 36864, while the sum is 37.

The square root of 2814442921 is about 53051.3234613426. The cubic root of 2814442921 is about 1411.8790100422.

The spelling of 2814442921 in words is "two billion, eight hundred fourteen million, four hundred forty-two thousand, nine hundred twenty-one".