120880640 has 80 divisors (see below), whose sum is σ = 302578848. Its totient is φ = 46227456.

The previous prime is 120880631. The next prime is 120880649. The reversal of 120880640 is 46088021.

It is an interprime number because it is at equal distance from previous prime (120880631) and next prime (120880649).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×120880640² = 29224258253619200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120880649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57854 + ... + 59906.

Almost surely, 2^120880640 is an apocalyptic number.

120880640 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 120880640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151289424).

120880640 is an abundant number, since it is smaller than the sum of its proper divisors (181698208).

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

120880640 is an equidigital number, since it uses as much as digits as its factorization.

120880640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099 (or 2083 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 120880640 is about 10994.5732068144. The cubic root of 120880640 is about 494.4460558332.

The spelling of 120880640 in words is "one hundred twenty million, eight hundred eighty thousand, six hundred forty".