52978842 has 24 divisors (see below), whose sum is σ = 131186016. Its totient is φ = 15136776.

The previous prime is 52978819. The next prime is 52978879. The reversal of 52978842 is 24887925.

52978842 is a `hidden beast` number, since 529 + 7 + 88 + 42 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210108 + ... + 210359.

It is an arithmetic number, because the mean of its divisors is an integer number (5466084).

Almost surely, 2^52978842 is an apocalyptic number.

52978842 is an abundant number, since it is smaller than the sum of its proper divisors (78207174).

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

52978842 is a wasteful number, since it uses less digits than its factorization.

52978842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420482 (or 420479 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 52978842 is about 7278.6566068197. The cubic root of 52978842 is about 375.5785841818.

The spelling of 52978842 in words is "fifty-two million, nine hundred seventy-eight thousand, eight hundred forty-two".