1442324240 has 80 divisors (see below), whose sum is σ = 3925998720. Its totient is φ = 482442240.

The previous prime is 1442324237. The next prime is 1442324243. The reversal of 1442324240 is 424232441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1442324237) and next prime (1442324243).

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (1442324243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8450 + ... + 54369.

It is an arithmetic number, because the mean of its divisors is an integer number (49074984).

Almost surely, 2^1442324240 is an apocalyptic number.

1442324240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1442324240 is an abundant number, since it is smaller than the sum of its proper divisors (2483674480).

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

1442324240 is a wasteful number, since it uses less digits than its factorization.

1442324240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62880 (or 62874 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 1442324240 is about 37977.9441255053. The cubic root of 1442324240 is about 1129.8504618470.

Adding to 1442324240 its reverse (424232441), we get a palindrome (1866556681).

The spelling of 1442324240 in words is "one billion, four hundred forty-two million, three hundred twenty-four thousand, two hundred forty".