422521023 has 8 divisors (see below), whose sum is σ = 575347968. Its totient is φ = 275687384.

The previous prime is 422521013. The next prime is 422521037. The reversal of 422521023 is 320125224.

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 422521023 - 2²⁶ = 355412159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422521013) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1498161 + ... + 1498442.

It is an arithmetic number, because the mean of its divisors is an integer number (71918496).

Almost surely, 2^422521023 is an apocalyptic number.

422521023 is a deficient number, since it is larger than the sum of its proper divisors (152826945).

422521023 is a wasteful number, since it uses less digits than its factorization.

422521023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2996653.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 422521023 is about 20555.3161736812. The cubic root of 422521023 is about 750.3826332004.

Adding to 422521023 its reverse (320125224), we get a palindrome (742646247).

The spelling of 422521023 in words is "four hundred twenty-two million, five hundred twenty-one thousand, twenty-three".