1442490905 has 16 divisors (see below), whose sum is σ = 1799691264. Its totient is φ = 1109032320.

The previous prime is 1442490893. The next prime is 1442490913. The reversal of 1442490905 is 5090942441.

It is not a de Polignac number, because 1442490905 - 2¹² = 1442486809 is a prime.

It is a super-2 number, since 2×1442490905² = 4161560022015438050, which contains 22 as substring.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 38777 + ... + 66246.

It is an arithmetic number, because the mean of its divisors is an integer number (112480704).

Almost surely, 2^1442490905 is an apocalyptic number.

It is an amenable number.

1442490905 is a deficient number, since it is larger than the sum of its proper divisors (357200359).

1442490905 is a wasteful number, since it uses less digits than its factorization.

1442490905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105136.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1442490905 is about 37980.1382962200. The cubic root of 1442490905 is about 1129.8939794023.

The spelling of 1442490905 in words is "one billion, four hundred forty-two million, four hundred ninety thousand, nine hundred five".