120019808 has 48 divisors (see below), whose sum is σ = 249923520. Its totient is φ = 56578176.

The previous prime is 120019807. The next prime is 120019831. The reversal of 120019808 is 808910021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120019807) 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, 186335 + ... + 186977.

It is an arithmetic number, because the mean of its divisors is an integer number (5206740).

Almost surely, 2^120019808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120019808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124961760).

120019808 is an abundant number, since it is smaller than the sum of its proper divisors (129903712).

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

120019808 is a wasteful number, since it uses less digits than its factorization.

120019808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979 (or 971 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 120019808 is about 10955.3552201652. The cubic root of 120019808 is about 493.2695526667.

Adding to 120019808 its reverse (808910021), we get a palindrome (928929829).

The spelling of 120019808 in words is "one hundred twenty million, nineteen thousand, eight hundred eight".