42709068 has 36 divisors (see below), whose sum is σ = 112655088. Its totient is φ = 13617120.

The previous prime is 42709067. The next prime is 42709099. The reversal of 42709068 is 86090724.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (42709067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24963 + ... + 26618.

It is an arithmetic number, because the mean of its divisors is an integer number (3129308).

Almost surely, 2^42709068 is an apocalyptic number.

It is an amenable number.

42709068 is an abundant number, since it is smaller than the sum of its proper divisors (69946020).

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

42709068 is a wasteful number, since it uses less digits than its factorization.

42709068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51614 (or 51609 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 42709068 is about 6535.2175174205. The cubic root of 42709068 is about 349.5479006228.

It can be divided in two parts, 4 and 2709068, that added together give a palindrome (2709072).

The spelling of 42709068 in words is "forty-two million, seven hundred nine thousand, sixty-eight".