1442011340 has 192 divisors, whose sum is σ = 3895492608. Its totient is φ = 435456000.

The previous prime is 1442011331. The next prime is 1442011387. The reversal of 1442011340 is 431102441.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 11354357 + ... + 11354483.

It is an arithmetic number, because the mean of its divisors is an integer number (20289024).

Almost surely, 2^1442011340 is an apocalyptic number.

1442011340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1442011340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1947746304).

1442011340 is an abundant number, since it is smaller than the sum of its proper divisors (2453481268).

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

1442011340 is a wasteful number, since it uses less digits than its factorization.

1442011340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1442011340 is about 37973.8244057667. The cubic root of 1442011340 is about 1129.7687521158.

Adding to 1442011340 its reverse (431102441), we get a palindrome (1873113781).

It can be divided in two parts, 144201 and 1340, that added together give a palindrome (145541).

The spelling of 1442011340 in words is "one billion, four hundred forty-two million, eleven thousand, three hundred forty".