120399800 has 48 divisors (see below), whose sum is σ = 283341240. Its totient is φ = 47573120.

The previous prime is 120399767. The next prime is 120399809. The reversal of 120399800 is 8993021.

It is a super-2 number, since 2×120399800² = 28992223680080000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120399809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12974 + ... + 20226.

Almost surely, 2^120399800 is an apocalyptic number.

120399800 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 120399800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141670620).

120399800 is an abundant number, since it is smaller than the sum of its proper divisors (162941440).

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

120399800 is a wasteful number, since it uses less digits than its factorization.

120399800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7352 (or 7343 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 120399800 is about 10972.6842659397. The cubic root of 120399800 is about 493.7895807612.

The spelling of 120399800 in words is "one hundred twenty million, three hundred ninety-nine thousand, eight hundred".