1123623920 has 40 divisors (see below), whose sum is σ = 2618738640. Its totient is φ = 448363520.

The previous prime is 1123623913. The next prime is 1123623931. The reversal of 1123623920 is 293263211.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16760 + ... + 50280.

It is an arithmetic number, because the mean of its divisors is an integer number (65468466).

Almost surely, 2^1123623920 is an apocalyptic number.

1123623920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a pronic number, being equal to 33520×33521.

It is an amenable number.

1123623920 is an abundant number, since it is smaller than the sum of its proper divisors (1495114720).

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

1123623920 is a wasteful number, since it uses less digits than its factorization.

1123623920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33953 (or 33947 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 1123623920 is about 33520.4999962709. The cubic root of 1123623920 is about 1039.6176849179.

The spelling of 1123623920 in words is "one billion, one hundred twenty-three million, six hundred twenty-three thousand, nine hundred twenty".