2043220445 has 32 divisors (see below), whose sum is σ = 2919248640. Its totient is φ = 1343669760.

The previous prime is 2043220427. The next prime is 2043220469. The reversal of 2043220445 is 5440223402.

It is a happy number.

It is not a de Polignac number, because 2043220445 - 2⁸ = 2043220189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72599 + ... + 96731.

It is an arithmetic number, because the mean of its divisors is an integer number (91226520).

Almost surely, 2^2043220445 is an apocalyptic number.

It is an amenable number.

2043220445 is a deficient number, since it is larger than the sum of its proper divisors (876028195).

2043220445 is a wasteful number, since it uses less digits than its factorization.

2043220445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24245.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 2043220445 is about 45201.9960289366. The cubic root of 2043220445 is about 1268.9321722450.

Adding to 2043220445 its reverse (5440223402), we get a palindrome (7483443847).

The spelling of 2043220445 in words is "two billion, forty-three million, two hundred twenty thousand, four hundred forty-five".