1440241230 has 64 divisors (see below), whose sum is σ = 3657830400. Its totient is φ = 361918080.

The previous prime is 1440241213. The next prime is 1440241273. The reversal of 1440241230 is 321420441.

It is a junction number, because it is equal to n+sod(n) for n = 1440241197 and 1440241206.

It is a congruent number.

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, 102256 + ... + 115484.

It is an arithmetic number, because the mean of its divisors is an integer number (57153600).

Almost surely, 2^1440241230 is an apocalyptic number.

1440241230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1440241230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1828915200).

1440241230 is an abundant number, since it is smaller than the sum of its proper divisors (2217589170).

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

1440241230 is a wasteful number, since it uses less digits than its factorization.

1440241230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13449.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1440241230 is about 37950.5102732493. The cubic root of 1440241230 is about 1129.3062883923.

Adding to 1440241230 its reverse (321420441), we get a palindrome (1761661671).

The spelling of 1440241230 in words is "one billion, four hundred forty million, two hundred forty-one thousand, two hundred thirty".