1442540330 has 64 divisors (see below), whose sum is σ = 3348967680. Its totient is φ = 434112000.

The previous prime is 1442540311. The next prime is 1442540339. The reversal of 1442540330 is 330452441.

It is a self number, because there is not a number n which added to its sum of digits gives 1442540330.

It is not an unprimeable number, because it can be changed into a prime (1442540339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9971 + ... + 54630.

It is an arithmetic number, because the mean of its divisors is an integer number (52327620).

Almost surely, 2^1442540330 is an apocalyptic number.

1442540330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1442540330 is an abundant number, since it is smaller than the sum of its proper divisors (1906427350).

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

1442540330 is a wasteful number, since it uses less digits than its factorization.

1442540330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64655.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 1442540330 is about 37980.7889596833. The cubic root of 1442540330 is about 1129.9068840179.

Adding to 1442540330 its reverse (330452441), we get a palindrome (1772992771).

The spelling of 1442540330 in words is "one billion, four hundred forty-two million, five hundred forty thousand, three hundred thirty".