132439878 has 12 divisors (see below), whose sum is σ = 286953108. Its totient is φ = 44146620.

The previous prime is 132439859. The next prime is 132439891. The reversal of 132439878 is 878934231.

132439878 is a `hidden beast` number, since 132 + 439 + 87 + 8 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 3678868 + ... + 3678903.

It is an arithmetic number, because the mean of its divisors is an integer number (23912759).

Almost surely, 2^132439878 is an apocalyptic number.

132439878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

132439878 is an abundant number, since it is smaller than the sum of its proper divisors (154513230).

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

132439878 is a wasteful number, since it uses less digits than its factorization.

132439878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7357779 (or 7357776 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 132439878 is about 11508.2526041098. The cubic root of 132439878 is about 509.7292911655.

The spelling of 132439878 in words is "one hundred thirty-two million, four hundred thirty-nine thousand, eight hundred seventy-eight".