2243687646 has 8 divisors (see below), whose sum is σ = 4487375304. Its totient is φ = 747895880.

The previous prime is 2243687639. The next prime is 2243687653. The reversal of 2243687646 is 6467863422.

It is an interprime number because it is at equal distance from previous prime (2243687639) and next prime (2243687653).

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

2243687646 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2243687595 and 2243687604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186973965 + ... + 186973976.

It is an arithmetic number, because the mean of its divisors is an integer number (560921913).

Almost surely, 2^2243687646 is an apocalyptic number.

2243687646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2243687646 is a wasteful number, since it uses less digits than its factorization.

2243687646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373947946.

The product of its digits is 2322432, while the sum is 48.

The square root of 2243687646 is about 47367.5801155178. The cubic root of 2243687646 is about 1309.1441384352.

The spelling of 2243687646 in words is "two billion, two hundred forty-three million, six hundred eighty-seven thousand, six hundred forty-six".