1442426540 has 48 divisors (see below), whose sum is σ = 3211905312. Its totient is φ = 542247936.

The previous prime is 1442426527. The next prime is 1442426549. The reversal of 1442426540 is 456242441.

It is a junction number, because it is equal to n+sod(n) for n = 1442426497 and 1442426506.

It is not an unprimeable number, because it can be changed into a prime (1442426549) 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 15 ways as a sum of consecutive naturals, for example, 268319 + ... + 273641.

It is an arithmetic number, because the mean of its divisors is an integer number (66914694).

Almost surely, 2^1442426540 is an apocalyptic number.

1442426540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1442426540 is an abundant number, since it is smaller than the sum of its proper divisors (1769478772).

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

1442426540 is a wasteful number, since it uses less digits than its factorization.

1442426540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6146 (or 6144 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 1442426540 is about 37979.2909359825. The cubic root of 1442426540 is about 1129.8771735869.

Adding to 1442426540 its reverse (456242441), we get a palindrome (1898668981).

The spelling of 1442426540 in words is "one billion, four hundred forty-two million, four hundred twenty-six thousand, five hundred forty".