1138165424 has 30 divisors (see below), whose sum is σ = 2406614196. Its totient is φ = 517144480.

The previous prime is 1138165423. The next prime is 1138165433. The reversal of 1138165424 is 4245618311.

It is not an unprimeable number, because it can be changed into a prime (1138165423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 446297 + ... + 448839.

Almost surely, 2^1138165424 is an apocalyptic number.

It is an amenable number.

1138165424 is an abundant number, since it is smaller than the sum of its proper divisors (1268448772).

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

1138165424 is an frugal number, since it uses more digits than its factorization.

1138165424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105 (or 2556 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 1138165424 is about 33736.7073674951. The cubic root of 1138165424 is about 1044.0832520722.

The spelling of 1138165424 in words is "one billion, one hundred thirty-eight million, one hundred sixty-five thousand, four hundred twenty-four".