1150711380 has 192 divisors, whose sum is σ = 4406330880. Its totient is φ = 242777088.

The previous prime is 1150711379. The next prime is 1150711411. The reversal of 1150711380 is 831170511.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37432 + ... + 60848.

It is an arithmetic number, because the mean of its divisors is an integer number (22949640).

Almost surely, 2^1150711380 is an apocalyptic number.

1150711380 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 1150711380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2203165440).

1150711380 is an abundant number, since it is smaller than the sum of its proper divisors (3255619500).

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

1150711380 is a wasteful number, since it uses less digits than its factorization.

1150711380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23455 (or 23447 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 27.

The square root of 1150711380 is about 33922.1370199461. The cubic root of 1150711380 is about 1047.9055391912.

Adding to 1150711380 its reverse (831170511), we get a palindrome (1981881891).

The spelling of 1150711380 in words is "one billion, one hundred fifty million, seven hundred eleven thousand, three hundred eighty".