120780216 has 96 divisors (see below), whose sum is σ = 344373120. Its totient is φ = 38188800.

The previous prime is 120780203. The next prime is 120780217. The reversal of 120780216 is 612087021.

It is a self number, because there is not a number n which added to its sum of digits gives 120780216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120780217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117786 + ... + 118806.

It is an arithmetic number, because the mean of its divisors is an integer number (3587220).

Almost surely, 2^120780216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120780216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172186560).

120780216 is an abundant number, since it is smaller than the sum of its proper divisors (223592904).

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

120780216 is a wasteful number, since it uses less digits than its factorization.

120780216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 1110 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 120780216 is about 10990.0052775238. The cubic root of 120780216 is about 494.3090942611.

The spelling of 120780216 in words is "one hundred twenty million, seven hundred eighty thousand, two hundred sixteen".