423041440 has 48 divisors (see below), whose sum is σ = 1005086880. Its totient is φ = 168259840.

The previous prime is 423041383. The next prime is 423041459. The reversal of 423041440 is 44140324.

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, 21255 + ... + 36025.

It is an arithmetic number, because the mean of its divisors is an integer number (20939310).

Almost surely, 2^423041440 is an apocalyptic number.

423041440 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 423041440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502543440).

423041440 is an abundant number, since it is smaller than the sum of its proper divisors (582045440).

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

423041440 is a wasteful number, since it uses less digits than its factorization.

423041440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14965 (or 14957 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 423041440 is about 20567.9712174050. The cubic root of 423041440 is about 750.6905876268.

Adding to 423041440 its reverse (44140324), we get a palindrome (467181764).

The spelling of 423041440 in words is "four hundred twenty-three million, forty-one thousand, four hundred forty".