1442440000 has 70 divisors (see below), whose sum is σ = 3576881594. Its totient is φ = 576960000.

The previous prime is 1442439949. The next prime is 1442440037. The reversal of 1442440000 is 442441.

It can be written as a sum of positive squares in 5 ways, for example, as 744634944 + 697805056 = 27288^2 + 26416^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1442440000.

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, 21970 + ... + 58030.

Almost surely, 2^1442440000 is an apocalyptic number.

1442440000 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 1442440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1788440797).

1442440000 is an abundant number, since it is smaller than the sum of its proper divisors (2134441594).

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

1442440000 is an frugal number, since it uses more digits than its factorization.

1442440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36093 (or 36068 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 1442440000 is about 37979.4681374029. The cubic root of 1442440000 is about 1129.8806880580.

Adding to 1442440000 its reverse (442441), we get a palindrome (1442882441).

The spelling of 1442440000 in words is "one billion, four hundred forty-two million, four hundred forty thousand".