422507839 has 8 divisors (see below), whose sum is σ = 455227920. Its totient is φ = 389819136.

The previous prime is 422507837. The next prime is 422507843. The reversal of 422507839 is 938705224.

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 422507839 - 2¹ = 422507837 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 (422507837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25359 + ... + 38575.

It is an arithmetic number, because the mean of its divisors is an integer number (56903490).

Almost surely, 2^422507839 is an apocalyptic number.

422507839 is a deficient number, since it is larger than the sum of its proper divisors (32720081).

422507839 is a wasteful number, since it uses less digits than its factorization.

422507839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15689.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 422507839 is about 20554.9954755529. The cubic root of 422507839 is about 750.3748283441.

The spelling of 422507839 in words is "four hundred twenty-two million, five hundred seven thousand, eight hundred thirty-nine".