4200120440 has 32 divisors (see below), whose sum is σ = 9503082000. Its totient is φ = 1670659584.

The previous prime is 4200120439. The next prime is 4200120473. The reversal of 4200120440 is 440210024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286145 + ... + 300464.

Almost surely, 2^4200120440 is an apocalyptic number.

4200120440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4200120440 is an abundant number, since it is smaller than the sum of its proper divisors (5302961560).

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

4200120440 is a wasteful number, since it uses less digits than its factorization.

4200120440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586799 (or 586795 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 4200120440 is about 64808.3361921906. The cubic root of 4200120440 is about 1613.4440682062. Note that the first 3 decimals are identical.

Adding to 4200120440 its reverse (440210024), we get a palindrome (4640330464).

The spelling of 4200120440 in words is "four billion, two hundred million, one hundred twenty thousand, four hundred forty".