120845280 has 48 divisors (see below), whose sum is σ = 380664144. Its totient is φ = 32225280.

The previous prime is 120845279. The next prime is 120845303. The reversal of 120845280 is 82548021.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a zygodrome in base 2.

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, 125401 + ... + 126360.

It is an arithmetic number, because the mean of its divisors is an integer number (7930503).

Almost surely, 2^120845280 is an apocalyptic number.

120845280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120845280 is an abundant number, since it is smaller than the sum of its proper divisors (259818864).

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

120845280 is a wasteful number, since it uses less digits than its factorization.

120845280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251779 (or 251771 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 120845280 is about 10992.9650231409. The cubic root of 120845280 is about 494.3978393513.

The spelling of 120845280 in words is "one hundred twenty million, eight hundred forty-five thousand, two hundred eighty".