132312440 has 32 divisors (see below), whose sum is σ = 320604480. Its totient is φ = 48853632.

The previous prime is 132312437. The next prime is 132312443. The reversal of 132312440 is 44213231.

It is an interprime number because it is at equal distance from previous prime (132312437) and next prime (132312443).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132312443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 126704 + ... + 127743.

It is an arithmetic number, because the mean of its divisors is an integer number (10018890).

Almost surely, 2^132312440 is an apocalyptic number.

132312440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132312440 is an abundant number, since it is smaller than the sum of its proper divisors (188292040).

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

132312440 is a wasteful number, since it uses less digits than its factorization.

132312440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254471 (or 254467 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 132312440 is about 11502.7144622476. The cubic root of 132312440 is about 509.5657459435.

Adding to 132312440 its reverse (44213231), we get a palindrome (176525671).

The spelling of 132312440 in words is "one hundred thirty-two million, three hundred twelve thousand, four hundred forty".