4031424 has 56 divisors (see below), whose sum is σ = 11856720. Its totient is φ = 1343232.

The previous prime is 4031399. The next prime is 4031441. The reversal of 4031424 is 4241304.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4031397 and 4031406.

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, 562 + ... + 2894.

Almost surely, 2^4031424 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 4031424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5928360).

4031424 is an abundant number, since it is smaller than the sum of its proper divisors (7825296).

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

4031424 is a wasteful number, since it uses less digits than its factorization.

4031424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354 (or 2338 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4031424 is about 2007.8406311259. The cubic root of 4031424 is about 159.1547087983.

Adding to 4031424 its reverse (4241304), we get a palindrome (8272728).

The spelling of 4031424 in words is "four million, thirty-one thousand, four hundred twenty-four".