2243744788 has 6 divisors (see below), whose sum is σ = 3926553386. Its totient is φ = 1121872392.

The previous prime is 2243744777. The next prime is 2243744801. The reversal of 2243744788 is 8874473422.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1757454084 + 486290704 = 41922^2 + 22052^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280468095 + ... + 280468102.

Almost surely, 2^2243744788 is an apocalyptic number.

It is an amenable number.

2243744788 is a deficient number, since it is larger than the sum of its proper divisors (1682808598).

2243744788 is a wasteful number, since it uses less digits than its factorization.

2243744788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560936201 (or 560936199 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 49.

The square root of 2243744788 is about 47368.1832879413. The cubic root of 2243744788 is about 1309.1552520557.

The spelling of 2243744788 in words is "two billion, two hundred forty-three million, seven hundred forty-four thousand, seven hundred eighty-eight".