42885389 has 8 divisors (see below), whose sum is σ = 44041920. Its totient is φ = 41743296.

The previous prime is 42885343. The next prime is 42885449. The reversal of 42885389 is 98358824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42885389 - 2¹⁶ = 42819853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42885589) 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 7 ways as a sum of consecutive naturals, for example, 2549 + ... + 9605.

It is an arithmetic number, because the mean of its divisors is an integer number (5505240).

Almost surely, 2^42885389 is an apocalyptic number.

It is an amenable number.

42885389 is a deficient number, since it is larger than the sum of its proper divisors (1156531).

42885389 is a wasteful number, since it uses less digits than its factorization.

42885389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7219.

The product of its digits is 552960, while the sum is 47.

The square root of 42885389 is about 6548.6936865302. The cubic root of 42885389 is about 350.0282671048.

The spelling of 42885389 in words is "forty-two million, eight hundred eighty-five thousand, three hundred eighty-nine".