423253664 has 48 divisors (see below), whose sum is σ = 866992896. Its totient is φ = 203174400.

The previous prime is 423253657. The next prime is 423253679. The reversal of 423253664 is 466352324.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128324 + ... + 131580.

It is an arithmetic number, because the mean of its divisors is an integer number (18062352).

Almost surely, 2^423253664 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 423253664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433496448).

423253664 is an abundant number, since it is smaller than the sum of its proper divisors (443739232).

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

423253664 is a wasteful number, since it uses less digits than its factorization.

423253664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3429 (or 3421 counting only the distinct ones).

The product of its digits is 103680, while the sum is 35.

The square root of 423253664 is about 20573.1296598257. The cubic root of 423253664 is about 750.8160977313.

The spelling of 423253664 in words is "four hundred twenty-three million, two hundred fifty-three thousand, six hundred sixty-four".