422529309 has 12 divisors (see below), whose sum is σ = 624514176. Its totient is φ = 275135112.

The previous prime is 422529301. The next prime is 422529323. The reversal of 422529309 is 903925224.

It is not a de Polignac number, because 422529309 - 2³ = 422529301 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422529301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 545517 + ... + 546290.

It is an arithmetic number, because the mean of its divisors is an integer number (52042848).

Almost surely, 2^422529309 is an apocalyptic number.

It is an amenable number.

422529309 is a deficient number, since it is larger than the sum of its proper divisors (201984867).

422529309 is a wasteful number, since it uses less digits than its factorization.

422529309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091856 (or 1091853 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 422529309 is about 20555.5177263916. The cubic root of 422529309 is about 750.3875383842.

The spelling of 422529309 in words is "four hundred twenty-two million, five hundred twenty-nine thousand, three hundred nine".