1442023340 has 48 divisors (see below), whose sum is σ = 3098524800. Its totient is φ = 563636736.

The previous prime is 1442023333. The next prime is 1442023343. The reversal of 1442023340 is 433202441.

It is not an unprimeable number, because it can be changed into a prime (1442023343) 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, 14866172 + ... + 14866268.

It is an arithmetic number, because the mean of its divisors is an integer number (64552600).

Almost surely, 2^1442023340 is an apocalyptic number.

1442023340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1442023340 is an abundant number, since it is smaller than the sum of its proper divisors (1656501460).

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

1442023340 is an frugal number, since it uses more digits than its factorization.

1442023340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1442023340 is about 37973.9824090126. The cubic root of 1442023340 is about 1129.7718859764.

Adding to 1442023340 its reverse (433202441), we get a palindrome (1875225781).

The spelling of 1442023340 in words is "one billion, four hundred forty-two million, twenty-three thousand, three hundred forty".