1138895360 has 160 divisors (see below), whose sum is σ = 2866102272. Its totient is φ = 433520640.

The previous prime is 1138895327. The next prime is 1138895369. The reversal of 1138895360 is 635988311.

It is a tau number, because it is divible by the number of its divisors (160).

It is not an unprimeable number, because it can be changed into a prime (1138895369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8967617 + ... + 8967743.

Almost surely, 2^1138895360 is an apocalyptic number.

1138895360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1138895360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1433051136).

1138895360 is an abundant number, since it is smaller than the sum of its proper divisors (1727206912).

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

1138895360 is a wasteful number, since it uses less digits than its factorization.

1138895360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 1138895360 is about 33747.5237610110. The cubic root of 1138895360 is about 1044.3064039016.

The spelling of 1138895360 in words is "one billion, one hundred thirty-eight million, eight hundred ninety-five thousand, three hundred sixty".