2021431444 has 48 divisors (see below), whose sum is σ = 3800055168. Its totient is φ = 937525248.

The previous prime is 2021431421. The next prime is 2021431463. The reversal of 2021431444 is 4441341202.

It is a congruent 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, 1799467 + ... + 1800589.

It is an arithmetic number, because the mean of its divisors is an integer number (79167816).

Almost surely, 2^2021431444 is an apocalyptic number.

It is an amenable number.

2021431444 is a deficient number, since it is larger than the sum of its proper divisors (1778623724).

2021431444 is a wasteful number, since it uses less digits than its factorization.

2021431444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504 (or 1502 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 2021431444 is about 44960.3318937928. The cubic root of 2021431444 is about 1264.4053914194.

Adding to 2021431444 its reverse (4441341202), we get a palindrome (6462772646).

The spelling of 2021431444 in words is "two billion, twenty-one million, four hundred thirty-one thousand, four hundred forty-four".