2285478331 has 4 divisors (see below), whose sum is σ = 2286972664. Its totient is φ = 2283984000.

The previous prime is 2285478323. The next prime is 2285478341. The reversal of 2285478331 is 1338745822.

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

It is a cyclic number.

It is not a de Polignac number, because 2285478331 - 2³ = 2285478323 is a prime.

It is a super-2 number, since 2×2285478331² = 10446822402941091122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2285478301) 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, 744870 + ... + 747931.

It is an arithmetic number, because the mean of its divisors is an integer number (571743166).

Almost surely, 2^2285478331 is an apocalyptic number.

2285478331 is a deficient number, since it is larger than the sum of its proper divisors (1494333).

2285478331 is a wasteful number, since it uses less digits than its factorization.

2285478331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494332.

The product of its digits is 322560, while the sum is 43.

The square root of 2285478331 is about 47806.6766362189. The cubic root of 2285478331 is about 1317.2221831995. Note that the first 3 decimals are identical.

The spelling of 2285478331 in words is "two billion, two hundred eighty-five million, four hundred seventy-eight thousand, three hundred thirty-one".