42877782 has 16 divisors (see below), whose sum is σ = 95284080. Its totient is φ = 14292576.

The previous prime is 42877777. The next prime is 42877801. The reversal of 42877782 is 28777824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396963 + ... + 397070.

It is an arithmetic number, because the mean of its divisors is an integer number (5955255).

Almost surely, 2^42877782 is an apocalyptic number.

42877782 is an abundant number, since it is smaller than the sum of its proper divisors (52406298).

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

42877782 is a wasteful number, since it uses less digits than its factorization.

42877782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794044 (or 794038 counting only the distinct ones).

The product of its digits is 351232, while the sum is 45.

The square root of 42877782 is about 6548.1128579156. The cubic root of 42877782 is about 350.0075699043.

It can be divided in two parts, 428 and 77782, that added together give a triangular number (78210 = T₃₉₅).

The spelling of 42877782 in words is "forty-two million, eight hundred seventy-seven thousand, seven hundred eighty-two".