120000305440 has 48 divisors (see below), whose sum is σ = 283535131320. Its totient is φ = 47994296320.

The previous prime is 120000305419. The next prime is 120000305441. The reversal of 120000305440 is 44503000021.

It can be written as a sum of positive squares in 4 ways, for example, as 85107559824 + 34892745616 = 291732^2 + 186796^2 .

It is not an unprimeable number, because it can be changed into a prime (120000305441) 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 7 ways as a sum of consecutive naturals, for example, 1424826 + ... + 1506694.

Almost surely, 2^120000305440 is an apocalyptic number.

120000305440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120000305440 is an abundant number, since it is smaller than the sum of its proper divisors (163534825880).

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

120000305440 is an equidigital number, since it uses as much as digits as its factorization.

120000305440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91045 (or 91037 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 120000305440 its reverse (44503000021), we get a palindrome (164503305461).

The spelling of 120000305440 in words is "one hundred twenty billion, three hundred five thousand, four hundred forty".