42978696 has 32 divisors (see below), whose sum is σ = 111153600. Its totient is φ = 13832000.

The previous prime is 42978659. The next prime is 42978721. The reversal of 42978696 is 69687924.

It is a happy number.

42978696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 30180 + ... + 31571.

It is an arithmetic number, because the mean of its divisors is an integer number (3473550).

Almost surely, 2^42978696 is an apocalyptic number.

It is an amenable number.

42978696 is an abundant number, since it is smaller than the sum of its proper divisors (68174904).

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

42978696 is a wasteful number, since it uses less digits than its factorization.

42978696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61789 (or 61785 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The square root of 42978696 is about 6555.8139082802. The cubic root of 42978696 is about 350.2819388126.

The spelling of 42978696 in words is "forty-two million, nine hundred seventy-eight thousand, six hundred ninety-six".