1123664022 has 64 divisors (see below), whose sum is σ = 2693396160. Its totient is φ = 345192192.

The previous prime is 1123663993. The next prime is 1123664023. The reversal of 1123664022 is 2204663211.

1123664022 is a `hidden beast` number, since 1 + 12 + 3 + 6 + 640 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123664023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 783418 + ... + 784850.

It is an arithmetic number, because the mean of its divisors is an integer number (42084315).

Almost surely, 2^1123664022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123664022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1346698080).

1123664022 is an abundant number, since it is smaller than the sum of its proper divisors (1569732138).

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

1123664022 is a wasteful number, since it uses less digits than its factorization.

1123664022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574 (or 2568 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1123664022 is about 33521.0981622023. The cubic root of 1123664022 is about 1039.6300527134.

The spelling of 1123664022 in words is "one billion, one hundred twenty-three million, six hundred sixty-four thousand, twenty-two".