1440120000 has 280 divisors, whose sum is σ = 5198985792. Its totient is φ = 348800000.

The previous prime is 1440119987. The next prime is 1440120001. The reversal of 1440120000 is 210441.

It is a super-2 number, since 2×1440120000² = 4147891228800000000, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1440120001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1319455 + ... + 1320545.

Almost surely, 2^1440120000 is an apocalyptic number.

1440120000 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 1440120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2599492896).

1440120000 is an abundant number, since it is smaller than the sum of its proper divisors (3758865792).

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

1440120000 is a wasteful number, since it uses less digits than its factorization.

1440120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137 (or 1112 counting only the distinct ones).

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

The square root of 1440120000 is about 37948.9130279116. The cubic root of 1440120000 is about 1129.2746016536.

Adding to 1440120000 its reverse (210441), we get a palindrome (1440330441).

The spelling of 1440120000 in words is "one billion, four hundred forty million, one hundred twenty thousand".