2285623649 has 4 divisors (see below), whose sum is σ = 2316933636. Its totient is φ = 2254313664.

The previous prime is 2285623577. The next prime is 2285623651. The reversal of 2285623649 is 9463265822.

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 499969600 + 1785654049 = 22360^2 + 42257^2 .

It is a cyclic number.

It is not a de Polignac number, because 2285623649 - 2⁸ = 2285623393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2285623049) 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, 15654884 + ... + 15655029.

It is an arithmetic number, because the mean of its divisors is an integer number (579233409).

Almost surely, 2^2285623649 is an apocalyptic number.

It is an amenable number.

2285623649 is a deficient number, since it is larger than the sum of its proper divisors (31309987).

2285623649 is an equidigital number, since it uses as much as digits as its factorization.

2285623649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31309986.

The product of its digits is 1244160, while the sum is 47.

The square root of 2285623649 is about 47808.1964625314. The cubic root of 2285623649 is about 1317.2501003367.

The spelling of 2285623649 in words is "two billion, two hundred eighty-five million, six hundred twenty-three thousand, six hundred forty-nine".