120685408 has 24 divisors (see below), whose sum is σ = 238192920. Its totient is φ = 60192000.

The previous prime is 120685339. The next prime is 120685423. The reversal of 120685408 is 804586021.

It is a super-3 number, since 3×120685408³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8908 + ... + 17908.

It is an arithmetic number, because the mean of its divisors is an integer number (9924705).

Almost surely, 2^120685408 is an apocalyptic number.

It is an amenable number.

120685408 is a deficient number, since it is larger than the sum of its proper divisors (117507512).

120685408 is an equidigital number, since it uses as much as digits as its factorization.

120685408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9430 (or 9422 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 120685408 is about 10985.6910570068. The cubic root of 120685408 is about 494.1797222888.

The spelling of 120685408 in words is "one hundred twenty million, six hundred eighty-five thousand, four hundred eight".