1138372180 has 24 divisors (see below), whose sum is σ = 2607907680. Its totient is φ = 413953440.

The previous prime is 1138372121. The next prime is 1138372199. The reversal of 1138372180 is 812738311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2586990 + ... + 2587429.

It is an arithmetic number, because the mean of its divisors is an integer number (108662820).

Almost surely, 2^1138372180 is an apocalyptic number.

1138372180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1138372180 is an abundant number, since it is smaller than the sum of its proper divisors (1469535500).

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

1138372180 is a wasteful number, since it uses less digits than its factorization.

1138372180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5174439 (or 5174437 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 1138372180 is about 33739.7714870744. The cubic root of 1138372180 is about 1044.1464700082.

The spelling of 1138372180 in words is "one billion, one hundred thirty-eight million, three hundred seventy-two thousand, one hundred eighty".