42070689 has 12 divisors (see below), whose sum is σ = 62729472. Its totient is φ = 27142200.

The previous prime is 42070673. The next prime is 42070723. The reversal of 42070689 is 98607024.

It is not a de Polignac number, because 42070689 - 2⁴ = 42070673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42070489) 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, 75117 + ... + 75674.

It is an arithmetic number, because the mean of its divisors is an integer number (5227456).

Almost surely, 2^42070689 is an apocalyptic number.

It is an amenable number.

42070689 is a deficient number, since it is larger than the sum of its proper divisors (20658783).

42070689 is a wasteful number, since it uses less digits than its factorization.

42070689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150828 (or 150825 counting only the distinct ones).

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

The square root of 42070689 is about 6486.1921803166. The cubic root of 42070689 is about 347.7975685547.

The spelling of 42070689 in words is "forty-two million, seventy thousand, six hundred eighty-nine".