1442540052 has 36 divisors (see below), whose sum is σ = 3650430420. Its totient is φ = 480317952.

The previous prime is 1442540051. The next prime is 1442540063. The reversal of 1442540052 is 2500452441.

It can be written as a sum of positive squares in 2 ways, for example, as 137452176 + 1305087876 = 11724^2 + 36126^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1442539998 and 1442540025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442540051) 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 11 ways as a sum of consecutive naturals, for example, 11878 + ... + 55010.

It is an arithmetic number, because the mean of its divisors is an integer number (101400845).

Almost surely, 2^1442540052 is an apocalyptic number.

1442540052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1442540052 is an abundant number, since it is smaller than the sum of its proper divisors (2207890368).

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

1442540052 is a wasteful number, since it uses less digits than its factorization.

1442540052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44072 (or 44067 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 1442540052 is about 37980.7852999382. The cubic root of 1442540052 is about 1129.9068114344.

Adding to 1442540052 its reverse (2500452441), we get a palindrome (3942992493).

The spelling of 1442540052 in words is "one billion, four hundred forty-two million, five hundred forty thousand, fifty-two".