2243438816 has 24 divisors (see below), whose sum is σ = 4426997904. Its totient is φ = 1119121920.

The previous prime is 2243438809. The next prime is 2243438839. The reversal of 2243438816 is 6188343422.

It is a super-2 number, since 2×2243438816² = 10066035442270963712, which contains 22 as substring.

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, 67100 + ... + 94811.

It is an arithmetic number, because the mean of its divisors is an integer number (184458246).

Almost surely, 2^2243438816 is an apocalyptic number.

It is an amenable number.

2243438816 is a deficient number, since it is larger than the sum of its proper divisors (2183559088).

2243438816 is a wasteful number, since it uses less digits than its factorization.

2243438816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162354 (or 162346 counting only the distinct ones).

The product of its digits is 221184, while the sum is 41.

The square root of 2243438816 is about 47364.9534571713. The cubic root of 2243438816 is about 1309.0957409708.

The spelling of 2243438816 in words is "two billion, two hundred forty-three million, four hundred thirty-eight thousand, eight hundred sixteen".