423321282 has 64 divisors (see below), whose sum is σ = 964379520. Its totient is φ = 137592000.

The previous prime is 423321281. The next prime is 423321307. The reversal of 423321282 is 282123324.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (423321281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 603532 + ... + 604232.

It is an arithmetic number, because the mean of its divisors is an integer number (15068430).

Almost surely, 2^423321282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423321282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482189760).

423321282 is an abundant number, since it is smaller than the sum of its proper divisors (541058238).

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

423321282 is a wasteful number, since it uses less digits than its factorization.

423321282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 970 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 423321282 is about 20574.7729513596. The cubic root of 423321282 is about 750.8560784678.

The spelling of 423321282 in words is "four hundred twenty-three million, three hundred twenty-one thousand, two hundred eighty-two".