1442041240 has 64 divisors (see below), whose sum is σ = 3403944000. Its totient is φ = 549050880.

The previous prime is 1442041231. The next prime is 1442041241. The reversal of 1442041240 is 421402441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442041241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73606 + ... + 91114.

It is an arithmetic number, because the mean of its divisors is an integer number (53186625).

Almost surely, 2^1442041240 is an apocalyptic number.

1442041240 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 1442041240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1701972000).

1442041240 is an abundant number, since it is smaller than the sum of its proper divisors (1961902760).

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

1442041240 is a wasteful number, since it uses less digits than its factorization.

1442041240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17620 (or 17616 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1442041240 is about 37974.2180959661. The cubic root of 1442041240 is about 1129.7765606194.

Adding to 1442041240 its reverse (421402441), we get a palindrome (1863443681).

The spelling of 1442041240 in words is "one billion, four hundred forty-two million, forty-one thousand, two hundred forty".