1440120 has 64 divisors (see below), whose sum is σ = 4717440. Its totient is φ = 348800.

The previous prime is 1440119. The next prime is 1440203. The reversal of 1440120 is 210441.

It is a super-2 number, since 2×1440120² = 4147891228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1440096 and 1440105.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 775 + ... + 1865.

It is an arithmetic number, because the mean of its divisors is an integer number (73710).

2^1440120 is an apocalyptic number.

1440120 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 1440120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2358720).

1440120 is an abundant number, since it is smaller than the sum of its proper divisors (3277320).

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

1440120 is a wasteful number, since it uses less digits than its factorization.

1440120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116 (or 1112 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1440120 is about 1200.0499989584. The cubic root of 1440120 is about 112.9274601654.

Adding to 1440120 its reverse (210441), we get a palindrome (1650561).

The spelling of 1440120 in words is "one million, four hundred forty thousand, one hundred twenty".