120143400 has 192 divisors, whose sum is σ = 408515520. Its totient is φ = 29030400.

The previous prime is 120143389. The next prime is 120143417. The reversal of 120143400 is 4341021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 120143400.

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 47 ways as a sum of consecutive naturals, for example, 569295 + ... + 569505.

It is an arithmetic number, because the mean of its divisors is an integer number (2127685).

Almost surely, 2^120143400 is an apocalyptic number.

120143400 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 120143400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204257760).

120143400 is an abundant number, since it is smaller than the sum of its proper divisors (288372120).

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

120143400 is a wasteful number, since it uses less digits than its factorization.

120143400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 120143400 is about 10960.9944804292. The cubic root of 120143400 is about 493.4388115508.

Adding to 120143400 its reverse (4341021), we get a palindrome (124484421).

The spelling of 120143400 in words is "one hundred twenty million, one hundred forty-three thousand, four hundred".