132666240 has 128 divisors (see below), whose sum is σ = 483333120. Its totient is φ = 30320640.

The previous prime is 132666217. The next prime is 132666241. The reversal of 132666240 is 42666231.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 132666198 and 132666207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132666241) 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, 8505 + ... + 18375.

It is an arithmetic number, because the mean of its divisors is an integer number (3776040).

Almost surely, 2^132666240 is an apocalyptic number.

132666240 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 132666240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241666560).

132666240 is an abundant number, since it is smaller than the sum of its proper divisors (350666880).

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

132666240 is an equidigital number, since it uses as much as digits as its factorization.

132666240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9900 (or 9888 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 132666240 is about 11518.0831738619. The cubic root of 132666240 is about 510.0195302017.

Subtracting from 132666240 its reverse (42666231), we obtain a palindrome (90000009).

The spelling of 132666240 in words is "one hundred thirty-two million, six hundred sixty-six thousand, two hundred forty".