32878642 has 16 divisors (see below), whose sum is σ = 50463072. Its totient is φ = 16061760.

The previous prime is 32878633. The next prime is 32878687. The reversal of 32878642 is 24687823.

It is a junction number, because it is equal to n+sod(n) for n = 32878595 and 32878604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16618 + ... + 18490.

It is an arithmetic number, because the mean of its divisors is an integer number (3153942).

Almost surely, 2^32878642 is an apocalyptic number.

32878642 is a deficient number, since it is larger than the sum of its proper divisors (17584430).

32878642 is a wasteful number, since it uses less digits than its factorization.

32878642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073.

The product of its digits is 129024, while the sum is 40.

The square root of 32878642 is about 5733.9900592868. The cubic root of 32878642 is about 320.3597581528.

The spelling of 32878642 in words is "thirty-two million, eight hundred seventy-eight thousand, six hundred forty-two".