1442642506 has 8 divisors (see below), whose sum is σ = 2222449380. Its totient is φ = 701826048.

The previous prime is 1442642477. The next prime is 1442642533. The reversal of 1442642506 is 6052462441.

It can be written as a sum of positive squares in 2 ways, for example, as 1398086881 + 44555625 = 37391^2 + 6675^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9747511 + ... + 9747658.

Almost surely, 2^1442642506 is an apocalyptic number.

1442642506 is a deficient number, since it is larger than the sum of its proper divisors (779806874).

1442642506 is a wasteful number, since it uses less digits than its factorization.

1442642506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19495208.

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 1442642506 is about 37982.1340369390. The cubic root of 1442642506 is about 1129.9335607164.

The spelling of 1442642506 in words is "one billion, four hundred forty-two million, six hundred forty-two thousand, five hundred six".