1123873440 has 48 divisors (see below), whose sum is σ = 3540202848. Its totient is φ = 299699456.

The previous prime is 1123873433. The next prime is 1123873441. The reversal of 1123873440 is 443783211.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1123873441) 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, 1170222 + ... + 1171181.

It is an arithmetic number, because the mean of its divisors is an integer number (73754226).

Almost surely, 2^1123873440 is an apocalyptic number.

1123873440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123873440 is an abundant number, since it is smaller than the sum of its proper divisors (2416329408).

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

1123873440 is a wasteful number, since it uses less digits than its factorization.

1123873440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341421 (or 2341413 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 1123873440 is about 33524.2216911892. The cubic root of 1123873440 is about 1039.6946342129.

The spelling of 1123873440 in words is "one billion, one hundred twenty-three million, eight hundred seventy-three thousand, four hundred forty".