422523389 has 8 divisors (see below), whose sum is σ = 447830208. Its totient is φ = 397266880.

The previous prime is 422523383. The next prime is 422523403. The reversal of 422523389 is 983325224.

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

It is not a de Polignac number, because 422523389 - 2²⁰ = 421474813 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422523383) 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, 5474 + ... + 29580.

It is an arithmetic number, because the mean of its divisors is an integer number (55978776).

Almost surely, 2^422523389 is an apocalyptic number.

It is an amenable number.

422523389 is a deficient number, since it is larger than the sum of its proper divisors (25306819).

422523389 is a wasteful number, since it uses less digits than its factorization.

422523389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25155.

The product of its digits is 103680, while the sum is 38.

The square root of 422523389 is about 20555.3737256222. The cubic root of 422523389 is about 750.3840338423.

The spelling of 422523389 in words is "four hundred twenty-two million, five hundred twenty-three thousand, three hundred eighty-nine".