2031444420 has 48 divisors (see below), whose sum is σ = 5795375040. Its totient is φ = 531496576.

The previous prime is 2031444419. The next prime is 2031444431. The reversal of 2031444420 is 244441302.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316230 + ... + 322589.

It is an arithmetic number, because the mean of its divisors is an integer number (120736980).

Almost surely, 2^2031444420 is an apocalyptic number.

2031444420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031444420 is an abundant number, since it is smaller than the sum of its proper divisors (3763930620).

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

2031444420 is a wasteful number, since it uses less digits than its factorization.

2031444420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638884 (or 638882 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 2031444420 is about 45071.5477879338. The cubic root of 2031444420 is about 1266.4896593223.

Adding to 2031444420 its reverse (244441302), we get a palindrome (2275885722).

The spelling of 2031444420 in words is "two billion, thirty-one million, four hundred forty-four thousand, four hundred twenty".