423642464 has 48 divisors (see below), whose sum is σ = 957404448. Its totient is φ = 180759552.

The previous prime is 423642421. The next prime is 423642473. The reversal of 423642464 is 464246324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48134 + ... + 56250.

It is an arithmetic number, because the mean of its divisors is an integer number (19945926).

Almost surely, 2^423642464 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 423642464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (478702224).

423642464 is an abundant number, since it is smaller than the sum of its proper divisors (533761984).

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

423642464 is a wasteful number, since it uses less digits than its factorization.

423642464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8367 (or 8359 counting only the distinct ones).

The product of its digits is 110592, while the sum is 35.

The square root of 423642464 is about 20582.5767094404. The cubic root of 423642464 is about 751.0459267789.

Adding to 423642464 its reverse (464246324), we get a palindrome (887888788).

The spelling of 423642464 in words is "four hundred twenty-three million, six hundred forty-two thousand, four hundred sixty-four".