1442240000 has 100 divisors (see below), whose sum is σ = 3601725204. Its totient is φ = 576768000.

The previous prime is 1442239991. The next prime is 1442240017. The reversal of 1442240000 is 422441.

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 317747 + ... + 322253.

Almost surely, 2^1442240000 is an apocalyptic number.

1442240000 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 1442240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1800862602).

1442240000 is an abundant number, since it is smaller than the sum of its proper divisors (2159485204).

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

1442240000 is an frugal number, since it uses more digits than its factorization.

1442240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545 (or 4514 counting only the distinct ones).

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

The square root of 1442240000 is about 37976.8350445373. The cubic root of 1442240000 is about 1129.8284648384.

Adding to 1442240000 its reverse (422441), we get a palindrome (1442662441).

The spelling of 1442240000 in words is "one billion, four hundred forty-two million, two hundred forty thousand".