423406522 has 32 divisors (see below), whose sum is σ = 838408320. Its totient is φ = 155258880.

The previous prime is 423406519. The next prime is 423406537. The reversal of 423406522 is 225604324.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78247 + ... + 83482.

It is an arithmetic number, because the mean of its divisors is an integer number (26200260).

Almost surely, 2^423406522 is an apocalyptic number.

423406522 is a deficient number, since it is larger than the sum of its proper divisors (415001798).

423406522 is a wasteful number, since it uses less digits than its factorization.

423406522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161766.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 423406522 is about 20576.8443158809. The cubic root of 423406522 is about 750.9064725612.

The spelling of 423406522 in words is "four hundred twenty-three million, four hundred six thousand, five hundred twenty-two".