423221076 has 18 divisors (see below), whose sum is σ = 1069808922. Its totient is φ = 141073680.

The previous prime is 423221033. The next prime is 423221081. The reversal of 423221076 is 670122324.

It can be written as a sum of positive squares in only one way, i.e., 421316676 + 1904400 = 20526^2 + 1380^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5878035 + ... + 5878106.

It is an arithmetic number, because the mean of its divisors is an integer number (59433829).

Almost surely, 2^423221076 is an apocalyptic number.

It is an amenable number.

423221076 is an abundant number, since it is smaller than the sum of its proper divisors (646587846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423221076 is a wasteful number, since it uses less digits than its factorization.

423221076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11756151 (or 11756146 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 423221076 is about 20572.3376406280. The cubic root of 423221076 is about 750.7968277875.

The spelling of 423221076 in words is "four hundred twenty-three million, two hundred twenty-one thousand, seventy-six".