120680820 has 96 divisors (see below), whose sum is σ = 404355840. Its totient is φ = 29704320.

The previous prime is 120680809. The next prime is 120680827. The reversal of 120680820 is 28086021.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120680827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1576 + ... + 15615.

It is an arithmetic number, because the mean of its divisors is an integer number (4212040).

Almost surely, 2^120680820 is an apocalyptic number.

120680820 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 120680820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202177920).

120680820 is an abundant number, since it is smaller than the sum of its proper divisors (283675020).

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

120680820 is a wasteful number, since it uses less digits than its factorization.

120680820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17222 (or 17214 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 120680820 is about 10985.4822379357. The cubic root of 120680820 is about 494.1734599319.

The spelling of 120680820 in words is "one hundred twenty million, six hundred eighty thousand, eight hundred twenty".