4420120445 has 32 divisors (see below), whose sum is σ = 6054525792. Its totient is φ = 3068854272.

The previous prime is 4420120409. The next prime is 4420120477. The reversal of 4420120445 is 5440210244.

It can be written as a sum of positive squares in 16 ways, for example, as 16736281 + 4403384164 = 4091^2 + 66358^2 .

It is a cyclic number.

It is not a de Polignac number, because 4420120445 - 2¹⁴ = 4420104061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1604189 + ... + 1606941.

It is an arithmetic number, because the mean of its divisors is an integer number (189203931).

Almost surely, 2^4420120445 is an apocalyptic number.

It is an amenable number.

4420120445 is a deficient number, since it is larger than the sum of its proper divisors (1634405347).

4420120445 is a wasteful number, since it uses less digits than its factorization.

4420120445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4241.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 4420120445 is about 66483.9863801803. The cubic root of 4420120445 is about 1641.1364873145.

Adding to 4420120445 its reverse (5440210244), we get a palindrome (9860330689).

It can be divided in two parts, 44201 and 20445, that added together give a palindrome (64646).

The spelling of 4420120445 in words is "four billion, four hundred twenty million, one hundred twenty thousand, four hundred forty-five".