42877836 has 72 divisors (see below), whose sum is σ = 116107264. Its totient is φ = 13821840.

The previous prime is 42877817. The next prime is 42877847. The reversal of 42877836 is 63877824.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42877791 and 42877800.

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 23 ways as a sum of consecutive naturals, for example, 29421 + ... + 30843.

Almost surely, 2^42877836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42877836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58053632).

42877836 is an abundant number, since it is smaller than the sum of its proper divisors (73229428).

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

42877836 is a wasteful number, since it uses less digits than its factorization.

42877836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473 (or 1459 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 42877836 is about 6548.1169812397. The cubic root of 42877836 is about 350.0077168367.

The spelling of 42877836 in words is "forty-two million, eight hundred seventy-seven thousand, eight hundred thirty-six".