120020540 has 24 divisors (see below), whose sum is σ = 252301392. Its totient is φ = 47959040.

The previous prime is 120020519. The next prime is 120020597. The reversal of 120020540 is 45020021.

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, 21875 + ... + 26805.

It is an arithmetic number, because the mean of its divisors is an integer number (10512558).

Almost surely, 2^120020540 is an apocalyptic number.

120020540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120020540 is an abundant number, since it is smaller than the sum of its proper divisors (132280852).

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

120020540 is a wasteful number, since it uses less digits than its factorization.

120020540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6157 (or 6155 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 120020540 is about 10955.3886284330. The cubic root of 120020540 is about 493.2705554806.

Adding to 120020540 its reverse (45020021), we get a palindrome (165040561).

The spelling of 120020540 in words is "one hundred twenty million, twenty thousand, five hundred forty".