120440240 has 160 divisors (see below), whose sum is σ = 321408000. Its totient is φ = 41693184.

The previous prime is 120440237. The next prime is 120440267. The reversal of 120440240 is 42044021.

It is a super-2 number, since 2×120440240² = 29011702822515200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1524521 + ... + 1524599.

It is an arithmetic number, because the mean of its divisors is an integer number (2008800).

Almost surely, 2^120440240 is an apocalyptic number.

120440240 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 120440240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160704000).

120440240 is an abundant number, since it is smaller than the sum of its proper divisors (200967760).

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

120440240 is a wasteful number, since it uses less digits than its factorization.

120440240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 120440240 is about 10974.5268690728. The cubic root of 120440240 is about 493.8448594115.

Adding to 120440240 its reverse (42044021), we get a palindrome (162484261).

The spelling of 120440240 in words is "one hundred twenty million, four hundred forty thousand, two hundred forty".