120443240 has 48 divisors (see below), whose sum is σ = 278635140. Its totient is φ = 46828800.

The previous prime is 120443233. The next prime is 120443243. The reversal of 120443240 is 42344021.

It can be written as a sum of positive squares in 2 ways, for example, as 106048804 + 14394436 = 10298^2 + 3794^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120443243) 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, 444305 + ... + 444575.

Almost surely, 2^120443240 is an apocalyptic number.

120443240 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 120443240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139317570).

120443240 is an abundant number, since it is smaller than the sum of its proper divisors (158191900).

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

120443240 is an equidigital number, since it uses as much as digits as its factorization.

120443240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 120443240 is about 10974.6635483736. The cubic root of 120443240 is about 493.8489597086.

Adding to 120443240 its reverse (42344021), we get a palindrome (162787261).

It can be divided in two parts, 1204 and 43240, that added together give a palindrome (44444).

The spelling of 120443240 in words is "one hundred twenty million, four hundred forty-three thousand, two hundred forty".