120415380 has 24 divisors (see below), whose sum is σ = 337163232. Its totient is φ = 32110752.

The previous prime is 120415349. The next prime is 120415391. The reversal of 120415380 is 83514021.

It is a self number, because there is not a number n which added to its sum of digits gives 120415380.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1003402 + ... + 1003521.

It is an arithmetic number, because the mean of its divisors is an integer number (14048468).

Almost surely, 2^120415380 is an apocalyptic number.

120415380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120415380 is an abundant number, since it is smaller than the sum of its proper divisors (216747852).

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

120415380 is a wasteful number, since it uses less digits than its factorization.

120415380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006935 (or 2006933 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 120415380 is about 10973.3941877616. The cubic root of 120415380 is about 493.8108789966.

The spelling of 120415380 in words is "one hundred twenty million, four hundred fifteen thousand, three hundred eighty".