120518406 has 72 divisors (see below), whose sum is σ = 292068504. Its totient is φ = 35786880.

The previous prime is 120518399. The next prime is 120518429. The reversal of 120518406 is 604815021.

It is a self number, because there is not a number n which added to its sum of digits gives 120518406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 109921 + ... + 111011.

It is an arithmetic number, because the mean of its divisors is an integer number (4056507).

Almost surely, 2^120518406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120518406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146034252).

120518406 is an abundant number, since it is smaller than the sum of its proper divisors (171550098).

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

120518406 is a wasteful number, since it uses less digits than its factorization.

120518406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 120518406 is about 10978.0875383648. The cubic root of 120518406 is about 493.9516718008.

The spelling of 120518406 in words is "one hundred twenty million, five hundred eighteen thousand, four hundred six".