132312240 has 120 divisors (see below), whose sum is σ = 447658848. Its totient is φ = 35020800.

The previous prime is 132312199. The next prime is 132312251. The reversal of 132312240 is 42213231.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108112 + ... + 109328.

Almost surely, 2^132312240 is an apocalyptic number.

132312240 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 132312240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223829424).

132312240 is an abundant number, since it is smaller than the sum of its proper divisors (315346608).

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

132312240 is a wasteful number, since it uses less digits than its factorization.

132312240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387 (or 1378 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 132312240 is about 11502.7057686442. The cubic root of 132312240 is about 509.5654891947.

Adding to 132312240 its reverse (42213231), we get a palindrome (174525471).

Subtracting from 132312240 its reverse (42213231), we obtain a palindrome (90099009).

The spelling of 132312240 in words is "one hundred thirty-two million, three hundred twelve thousand, two hundred forty".