1123443992 has 32 divisors (see below), whose sum is σ = 2377198800. Its totient is φ = 493046400.

The previous prime is 1123443991. The next prime is 1123444037. The reversal of 1123443992 is 2993443211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123443991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217559 + ... + 222662.

Almost surely, 2^1123443992 is an apocalyptic number.

It is an amenable number.

1123443992 is an abundant number, since it is smaller than the sum of its proper divisors (1253754808).

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

1123443992 is a wasteful number, since it uses less digits than its factorization.

1123443992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440267 (or 440263 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 1123443992 is about 33517.8160386383. The cubic root of 1123443992 is about 1039.5621899808.

The spelling of 1123443992 in words is "one billion, one hundred twenty-three million, four hundred forty-three thousand, nine hundred ninety-two".