42368389 has 16 divisors (see below), whose sum is σ = 49939200. Its totient is φ = 35926800.

The previous prime is 42368387. The next prime is 42368393. The reversal of 42368389 is 98386324.

42368389 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 42368389 - 2¹ = 42368387 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 (42368383) 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 15 ways as a sum of consecutive naturals, for example, 34032 + ... + 35254.

It is an arithmetic number, because the mean of its divisors is an integer number (3121200).

Almost surely, 2^42368389 is an apocalyptic number.

42368389 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

42368389 is a deficient number, since it is larger than the sum of its proper divisors (7570811).

42368389 is a wasteful number, since it uses less digits than its factorization.

42368389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345 (or 1331 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 42368389 is about 6509.1004754881. The cubic root of 42368389 is about 348.6160011580.

The spelling of 42368389 in words is "forty-two million, three hundred sixty-eight thousand, three hundred eighty-nine".