42416655 has 32 divisors (see below), whose sum is σ = 69662208. Its totient is φ = 22032000.

The previous prime is 42416653. The next prime is 42416681. The reversal of 42416655 is 55661424.

42416655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

42416655 is a nontrivial binomial coefficient, being equal to C(9211, 2).

It is not a de Polignac number, because 42416655 - 2¹ = 42416653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42416653) 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 31 ways as a sum of consecutive naturals, for example, 138012 + ... + 138318.

It is an arithmetic number, because the mean of its divisors is an integer number (2176944).

Almost surely, 2^42416655 is an apocalyptic number.

42416655 is the 9210-th triangular number.

42416655 is a deficient number, since it is larger than the sum of its proper divisors (27245553).

42416655 is a wasteful number, since it uses less digits than its factorization.

42416655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527.

The product of its digits is 28800, while the sum is 33.

The square root of 42416655 is about 6512.8069985222. The cubic root of 42416655 is about 348.7483318480.

It can be divided in two parts, 42416 and 655, that added together give a triangular number (43071 = T₂₉₃).

The spelling of 42416655 in words is "forty-two million, four hundred sixteen thousand, six hundred fifty-five".