1440030000 has 200 divisors, whose sum is σ = 4853046528. Its totient is φ = 367136000.

The previous prime is 1440029971. The next prime is 1440030017. The reversal of 1440030000 is 300441.

It is a tau number, because it is divible by the number of its divisors (200).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 688957 + ... + 691043.

Almost surely, 2^1440030000 is an apocalyptic number.

1440030000 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 1440030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2426523264).

1440030000 is an abundant number, since it is smaller than the sum of its proper divisors (3413016528).

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

1440030000 is a wasteful number, since it uses less digits than its factorization.

1440030000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141 (or 2120 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1440030000 is about 37947.7272046693. The cubic root of 1440030000 is about 1129.2510765697.

Adding to 1440030000 its reverse (300441), we get a palindrome (1440330441).

The spelling of 1440030000 in words is "one billion, four hundred forty million, thirty thousand".