42649935 has 32 divisors (see below), whose sum is σ = 71705088. Its totient is φ = 21605760.

The previous prime is 42649933. The next prime is 42649949. The reversal of 42649935 is 53994624.

42649935 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42649935 - 2¹ = 42649933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42649933) 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, 62104 + ... + 62786.

It is an arithmetic number, because the mean of its divisors is an integer number (2240784).

Almost surely, 2^42649935 is an apocalyptic number.

42649935 is a deficient number, since it is larger than the sum of its proper divisors (29055153).

42649935 is a wasteful number, since it uses less digits than its factorization.

42649935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895.

The product of its digits is 233280, while the sum is 42.

The square root of 42649935 is about 6530.6917704023. The cubic root of 42649935 is about 349.3865034940.

Subtracting from 42649935 its product of digits (233280), we obtain a triangular number (42416655 = T₉₂₁₀).

The spelling of 42649935 in words is "forty-two million, six hundred forty-nine thousand, nine hundred thirty-five".