2285845421 has 4 divisors (see below), whose sum is σ = 2286133344. Its totient is φ = 2285557500.

The previous prime is 2285845417. The next prime is 2285845439. The reversal of 2285845421 is 1245485822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2285845421 - 2² = 2285845417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2285805421) 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, 131705 + ... + 148046.

It is an arithmetic number, because the mean of its divisors is an integer number (571533336).

Almost surely, 2^2285845421 is an apocalyptic number.

It is an amenable number.

2285845421 is a deficient number, since it is larger than the sum of its proper divisors (287923).

2285845421 is an equidigital number, since it uses as much as digits as its factorization.

2285845421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287922.

The product of its digits is 204800, while the sum is 41.

The square root of 2285845421 is about 47810.5157993511. The cubic root of 2285845421 is about 1317.2927028216.

The spelling of 2285845421 in words is "two billion, two hundred eighty-five million, eight hundred forty-five thousand, four hundred twenty-one".