423626328 has 128 divisors (see below), whose sum is σ = 1246233600. Its totient is φ = 133056000.

The previous prime is 423626323. The next prime is 423626341. The reversal of 423626328 is 823626324.

423626328 is a `hidden beast` number, since 4 + 2 + 3 + 626 + 3 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 423626292 and 423626301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423626323) 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, 352128 + ... + 353328.

It is an arithmetic number, because the mean of its divisors is an integer number (9736200).

Almost surely, 2^423626328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423626328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623116800).

423626328 is an abundant number, since it is smaller than the sum of its proper divisors (822607272).

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

423626328 is a wasteful number, since it uses less digits than its factorization.

423626328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310 (or 1300 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 423626328 is about 20582.1847236876. The cubic root of 423626328 is about 751.0363911980.

The spelling of 423626328 in words is "four hundred twenty-three million, six hundred twenty-six thousand, three hundred twenty-eight".