42877820 has 24 divisors (see below), whose sum is σ = 92478624. Its totient is φ = 16687296.

The previous prime is 42877817. The next prime is 42877847. The reversal of 42877820 is 2877824.

42877820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 28232 + ... + 29711.

It is an arithmetic number, because the mean of its divisors is an integer number (3853276).

Almost surely, 2^42877820 is an apocalyptic number.

It is an amenable number.

42877820 is an abundant number, since it is smaller than the sum of its proper divisors (49600804).

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

42877820 is a wasteful number, since it uses less digits than its factorization.

42877820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57989 (or 57987 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 42877820 is about 6548.1157595143. The cubic root of 42877820 is about 350.0076733012.

The spelling of 42877820 in words is "forty-two million, eight hundred seventy-seven thousand, eight hundred twenty".