423132240 has 80 divisors (see below), whose sum is σ = 1324522368. Its totient is φ = 111733248.

The previous prime is 423132197. The next prime is 423132251. The reversal of 423132240 is 42231324.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 16162 + ... + 33278.

Almost surely, 2^423132240 is an apocalyptic number.

423132240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423132240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662261184).

423132240 is an abundant number, since it is smaller than the sum of its proper divisors (901390128).

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

423132240 is a wasteful number, since it uses less digits than its factorization.

423132240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17236 (or 17230 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 423132240 is about 20570.1784143940. The cubic root of 423132240 is about 750.7442922389.

Adding to 423132240 its reverse (42231324), we get a palindrome (465363564).

The spelling of 423132240 in words is "four hundred twenty-three million, one hundred thirty-two thousand, two hundred forty".