2042226481 has 3 divisors (see below), whose sum is σ = 2042271673. Its totient is φ = 2042181290.

The previous prime is 2042226479. The next prime is 2042226491. The reversal of 2042226481 is 1846222402.

The square root of 2042226481 is 45191.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 2042226481 - 2¹ = 2042226479 is a prime.

It is a super-2 number, since 2×2042226481² = 8341377999395286722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042226491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 22596 + ... + 67786.

Almost surely, 2^2042226481 is an apocalyptic number.

2042226481 is the 45191-st square number.

2042226481 is the 22596-th centered octagonal number.

It is an amenable number.

2042226481 is a deficient number, since it is larger than the sum of its proper divisors (45192).

2042226481 is an frugal number, since it uses more digits than its factorization.

2042226481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90382 (or 45191 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The cubic root of 2042226481 is about 1268.7263733586.

Adding to 2042226481 its reverse (1846222402), we get a palindrome (3888448883).

The spelling of 2042226481 in words is "two billion, forty-two million, two hundred twenty-six thousand, four hundred eighty-one".