1442225144 has 16 divisors (see below), whose sum is σ = 2714154720. Its totient is φ = 718450560.

The previous prime is 1442225137. The next prime is 1442225149. The reversal of 1442225144 is 4415222441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442225149) 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, 330449 + ... + 334784.

It is an arithmetic number, because the mean of its divisors is an integer number (169634670).

Almost surely, 2^1442225144 is an apocalyptic number.

It is an amenable number.

1442225144 is a deficient number, since it is larger than the sum of its proper divisors (1271929576).

1442225144 is a wasteful number, since it uses less digits than its factorization.

1442225144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665510 (or 665506 counting only the distinct ones).

The product of its digits is 10240, while the sum is 29.

The square root of 1442225144 is about 37976.6394511152. The cubic root of 1442225144 is about 1129.8245855051.

Adding to 1442225144 its reverse (4415222441), we get a palindrome (5857447585).

The spelling of 1442225144 in words is "one billion, four hundred forty-two million, two hundred twenty-five thousand, one hundred forty-four".