42204439 has 8 divisors (see below), whose sum is σ = 43426160. Its totient is φ = 41000256.

The previous prime is 42204433. The next prime is 42204451. The reversal of 42204439 is 93440224.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42204439 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 (42204433) 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, 577 + ... + 9205.

It is an arithmetic number, because the mean of its divisors is an integer number (5428270).

Almost surely, 2^42204439 is an apocalyptic number.

42204439 is a deficient number, since it is larger than the sum of its proper divisors (1221721).

42204439 is an equidigital number, since it uses as much as digits as its factorization.

42204439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8769.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 42204439 is about 6496.4943623465. The cubic root of 42204439 is about 348.1657482114.

The spelling of 42204439 in words is "forty-two million, two hundred four thousand, four hundred thirty-nine".