1123628844 has 48 divisors (see below), whose sum is σ = 2946246912. Its totient is φ = 330699072.

The previous prime is 1123628833. The next prime is 1123628873. The reversal of 1123628844 is 4488263211.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152994 + ... + 160169.

It is an arithmetic number, because the mean of its divisors is an integer number (61380144).

Almost surely, 2^1123628844 is an apocalyptic number.

It is an amenable number.

1123628844 is an abundant number, since it is smaller than the sum of its proper divisors (1822618068).

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

1123628844 is a wasteful number, since it uses less digits than its factorization.

1123628844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313206 (or 313204 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The square root of 1123628844 is about 33520.5734437823. The cubic root of 1123628844 is about 1039.6192035369.

The spelling of 1123628844 in words is "one billion, one hundred twenty-three million, six hundred twenty-eight thousand, eight hundred forty-four".