42210389 has 8 divisors (see below), whose sum is σ = 45760512. Its totient is φ = 38703600.

The previous prime is 42210383. The next prime is 42210403. The reversal of 42210389 is 98301224.

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

It is not a de Polignac number, because 42210389 - 2⁴ = 42210373 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 (42210383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8789 + ... + 12714.

It is an arithmetic number, because the mean of its divisors is an integer number (5720064).

Almost surely, 2^42210389 is an apocalyptic number.

It is an amenable number.

42210389 is a deficient number, since it is larger than the sum of its proper divisors (3550123).

42210389 is a wasteful number, since it uses less digits than its factorization.

42210389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21667.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 42210389 is about 6496.9522854951. The cubic root of 42210389 is about 348.1821089617.

The spelling of 42210389 in words is "forty-two million, two hundred ten thousand, three hundred eighty-nine".