424402144 has 48 divisors (see below), whose sum is σ = 896894208. Its totient is φ = 196964352.

The previous prime is 424402129. The next prime is 424402159. The reversal of 424402144 is 441204424.

It is an interprime number because it is at equal distance from previous prime (424402129) and next prime (424402159).

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, 34369 + ... + 45055.

It is an arithmetic number, because the mean of its divisors is an integer number (18685296).

Almost surely, 2^424402144 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 424402144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448447104).

424402144 is an abundant number, since it is smaller than the sum of its proper divisors (472492064).

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

424402144 is a wasteful number, since it uses less digits than its factorization.

424402144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10787 (or 10779 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 424402144 is about 20601.0228872258. The cubic root of 424402144 is about 751.4945864515.

Adding to 424402144 its reverse (441204424), we get a palindrome (865606568).

The spelling of 424402144 in words is "four hundred twenty-four million, four hundred two thousand, one hundred forty-four".