42877690 has 8 divisors (see below), whose sum is σ = 77179860. Its totient is φ = 17151072.

The previous prime is 42877687. The next prime is 42877691. The reversal of 42877690 is 9677824.

42877690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42653961 + 223729 = 6531^2 + 473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42877690² = 3676992599472200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42877691) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2143875 + ... + 2143894.

Almost surely, 2^42877690 is an apocalyptic number.

42877690 is a deficient number, since it is larger than the sum of its proper divisors (34302170).

42877690 is a wasteful number, since it uses less digits than its factorization.

42877690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4287776.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 42877690 is about 6548.1058329871. The cubic root of 42877690 is about 350.0073195748.

The spelling of 42877690 in words is "forty-two million, eight hundred seventy-seven thousand, six hundred ninety".