423980144 has 60 divisors (see below), whose sum is σ = 958420800. Its totient is φ = 181165824.

The previous prime is 423980143. The next prime is 423980189. The reversal of 423980144 is 441089324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423980143) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 374972 + ... + 376100.

It is an arithmetic number, because the mean of its divisors is an integer number (15973680).

Almost surely, 2^423980144 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 423980144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479210400).

423980144 is an abundant number, since it is smaller than the sum of its proper divisors (534440656).

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

423980144 is a wasteful number, since it uses less digits than its factorization.

423980144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630 (or 1617 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 423980144 is about 20590.7781300270. The cubic root of 423980144 is about 751.2454234898.

The spelling of 423980144 in words is "four hundred twenty-three million, nine hundred eighty thousand, one hundred forty-four".