42705118 has 4 divisors (see below), whose sum is σ = 64057680. Its totient is φ = 21352558.

The previous prime is 42705107. The next prime is 42705119. The reversal of 42705118 is 81150724.

42705118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42705119) 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 as a sum of consecutive naturals, namely, 10676278 + ... + 10676281.

It is an arithmetic number, because the mean of its divisors is an integer number (16014420).

Almost surely, 2^42705118 is an apocalyptic number.

42705118 is a deficient number, since it is larger than the sum of its proper divisors (21352562).

42705118 is a wasteful number, since it uses less digits than its factorization.

42705118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21352561.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 42705118 is about 6534.9153016699. The cubic root of 42705118 is about 349.5371241699.

The spelling of 42705118 in words is "forty-two million, seven hundred five thousand, one hundred eighteen".