1442321144 has 16 divisors (see below), whose sum is σ = 2950202520. Its totient is φ = 655600480.

The previous prime is 1442321143. The next prime is 1442321147. The reversal of 1442321144 is 4411232441.

It is a super-3 number, since 3×1442321144³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442321143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8194919 + ... + 8195094.

Almost surely, 2^1442321144 is an apocalyptic number.

It is an amenable number.

1442321144 is an abundant number, since it is smaller than the sum of its proper divisors (1507881376).

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

1442321144 is a wasteful number, since it uses less digits than its factorization.

1442321144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16390030 (or 16390026 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 1442321144 is about 37977.9033649832. The cubic root of 1442321144 is about 1129.8496534251.

Adding to 1442321144 its reverse (4411232441), we get a palindrome (5853553585).

The spelling of 1442321144 in words is "one billion, four hundred forty-two million, three hundred twenty-one thousand, one hundred forty-four".