2031424 has 14 divisors (see below), whose sum is σ = 4031234. Its totient is φ = 1015680.

The previous prime is 2031409. The next prime is 2031431. The reversal of 2031424 is 4241302.

It can be written as a sum of positive squares in only one way, i.e., 1871424 + 160000 = 1368^2 + 400^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2031398 and 2031407.

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 as a sum of consecutive naturals, namely, 15807 + ... + 15934.

2^2031424 is an apocalyptic number.

It is an amenable number.

2031424 is a deficient number, since it is larger than the sum of its proper divisors (1999810).

2031424 is an equidigital number, since it uses as much as digits as its factorization.

2031424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31753 (or 31743 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2031424 is about 1425.2803233049. The cubic root of 2031424 is about 126.6485415740.

Adding to 2031424 its reverse (4241302), we get a palindrome (6272726).

The spelling of 2031424 in words is "two million, thirty-one thousand, four hundred twenty-four".