120445420 has 12 divisors (see below), whose sum is σ = 252935424. Its totient is φ = 48178160.

The previous prime is 120445399. The next prime is 120445421. The reversal of 120445420 is 24544021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 120445391 and 120445400.

It is not an unprimeable number, because it can be changed into a prime (120445421) 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 3 ways as a sum of consecutive naturals, for example, 3011116 + ... + 3011155.

It is an arithmetic number, because the mean of its divisors is an integer number (21077952).

Almost surely, 2^120445420 is an apocalyptic number.

120445420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120445420 is an abundant number, since it is smaller than the sum of its proper divisors (132490004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120445420 is a wasteful number, since it uses less digits than its factorization.

120445420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6022280 (or 6022278 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 120445420 is about 10974.7628675976. The cubic root of 120445420 is about 493.8519392150.

Adding to 120445420 its reverse (24544021), we get a palindrome (144989441).

The spelling of 120445420 in words is "one hundred twenty million, four hundred forty-five thousand, four hundred twenty".