132857388 has 48 divisors (see below), whose sum is σ = 346604160. Its totient is φ = 44008272.

The previous prime is 132857371. The next prime is 132857393. The reversal of 132857388 is 883758231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13831 + ... + 21377.

It is an arithmetic number, because the mean of its divisors is an integer number (7220920).

Almost surely, 2^132857388 is an apocalyptic number.

132857388 is a gapful number since it is divisible by the number (18) 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 132857388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173302080).

132857388 is an abundant number, since it is smaller than the sum of its proper divisors (213746772).

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

132857388 is a wasteful number, since it uses less digits than its factorization.

132857388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7723 (or 7715 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 132857388 is about 11526.3779219666. The cubic root of 132857388 is about 510.2643612132.

The spelling of 132857388 in words is "one hundred thirty-two million, eight hundred fifty-seven thousand, three hundred eighty-eight".