120043440 has 240 divisors, whose sum is σ = 459613440. Its totient is φ = 27793920.

The previous prime is 120043433. The next prime is 120043453. The reversal of 120043440 is 44340021.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181831 + ... + 182489.

It is an arithmetic number, because the mean of its divisors is an integer number (1915056).

Almost surely, 2^120043440 is an apocalyptic number.

120043440 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 120043440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229806720).

120043440 is an abundant number, since it is smaller than the sum of its proper divisors (339570000).

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

120043440 is a wasteful number, since it uses less digits than its factorization.

120043440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 120043440 is about 10956.4337263546. The cubic root of 120043440 is about 493.3019256038.

Adding to 120043440 its reverse (44340021), we get a palindrome (164383461).

The spelling of 120043440 in words is "one hundred twenty million, forty-three thousand, four hundred forty".