120004445 has 16 divisors (see below), whose sum is σ = 166339008. Its totient is φ = 82141440.

The previous prime is 120004421. The next prime is 120004447. The reversal of 120004445 is 544400021.

It is a de Polignac number, because none of the positive numbers 2^k-120004445 is a prime.

It is a super-3 number, since 3×120004445³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120004447) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 63239 + ... + 65108.

It is an arithmetic number, because the mean of its divisors is an integer number (10396188).

Almost surely, 2^120004445 is an apocalyptic number.

It is an amenable number.

120004445 is a deficient number, since it is larger than the sum of its proper divisors (46334563).

120004445 is a wasteful number, since it uses less digits than its factorization.

120004445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128380.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 120004445 is about 10954.6540337886. The cubic root of 120004445 is about 493.2485049646.

Adding to 120004445 its reverse (544400021), we get a palindrome (664404466).

The spelling of 120004445 in words is "one hundred twenty million, four thousand, four hundred forty-five".