120600040 has 128 divisors (see below), whose sum is σ = 327525120. Its totient is φ = 39424000.

The previous prime is 120600037. The next prime is 120600043. The reversal of 120600040 is 40006021.

It is an interprime number because it is at equal distance from previous prime (120600037) and next prime (120600043).

It is not an unprimeable number, because it can be changed into a prime (120600043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171690 + ... + 172390.

It is an arithmetic number, because the mean of its divisors is an integer number (2558790).

Almost surely, 2^120600040 is an apocalyptic number.

120600040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120600040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163762560).

120600040 is an abundant number, since it is smaller than the sum of its proper divisors (206925080).

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

120600040 is a wasteful number, since it uses less digits than its factorization.

120600040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763 (or 759 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 120600040 is about 10981.8049518283. The cubic root of 120600040 is about 494.0631738557.

Adding to 120600040 its reverse (40006021), we get a palindrome (160606061).

The spelling of 120600040 in words is "one hundred twenty million, six hundred thousand, forty".