2031224004 has 72 divisors (see below), whose sum is σ = 5253306240. Its totient is φ = 661459392.

The previous prime is 2031223951. The next prime is 2031224101. The reversal of 2031224004 is 4004221302.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1808187 + ... + 1809309.

Almost surely, 2^2031224004 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 2031224004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2626653120).

2031224004 is an abundant number, since it is smaller than the sum of its proper divisors (3222082236).

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

2031224004 is a wasteful number, since it uses less digits than its factorization.

2031224004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249 (or 2244 counting only the distinct ones).

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

The square root of 2031224004 is about 45069.1025426511. The cubic root of 2031224004 is about 1266.4438520667.

Adding to 2031224004 its reverse (4004221302), we get a palindrome (6035445306).

The spelling of 2031224004 in words is "two billion, thirty-one million, two hundred twenty-four thousand, four".