1442138980 has 24 divisors (see below), whose sum is σ = 3030612480. Its totient is φ = 576451680.

The previous prime is 1442138933. The next prime is 1442138989. The reversal of 1442138980 is 898312441.

It is not an unprimeable number, because it can be changed into a prime (1442138989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4911 + ... + 53929.

It is an arithmetic number, because the mean of its divisors is an integer number (126275520).

Almost surely, 2^1442138980 is an apocalyptic number.

1442138980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1442138980 is an abundant number, since it is smaller than the sum of its proper divisors (1588473500).

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

1442138980 is a wasteful number, since it uses less digits than its factorization.

1442138980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50499 (or 50497 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 1442138980 is about 37975.5049999338. The cubic root of 1442138980 is about 1129.8020850550.

The spelling of 1442138980 in words is "one billion, four hundred forty-two million, one hundred thirty-eight thousand, nine hundred eighty".