1442040736 has 12 divisors (see below), whose sum is σ = 2839017762. Its totient is φ = 721020352.

The previous prime is 1442040697. The next prime is 1442040737. The reversal of 1442040736 is 6370402441.

It can be written as a sum of positive squares in only one way, i.e., 982195600 + 459845136 = 31340^2 + 21444^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1442040698 and 1442040707.

It is not an unprimeable number, because it can be changed into a prime (1442040737) 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 as a sum of consecutive naturals, namely, 22531855 + ... + 22531918.

Almost surely, 2^1442040736 is an apocalyptic number.

1442040736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1442040736 is a deficient number, since it is larger than the sum of its proper divisors (1396977026).

1442040736 is an equidigital number, since it uses as much as digits as its factorization.

1442040736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45063783 (or 45063775 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 1442040736 is about 37974.2114598842. The cubic root of 1442040736 is about 1129.7764289987.

The spelling of 1442040736 in words is "one billion, four hundred forty-two million, forty thousand, seven hundred thirty-six".