1442425905 has 24 divisors (see below), whose sum is σ = 2524486848. Its totient is φ = 761822496.

The previous prime is 1442425889. The next prime is 1442425931. The reversal of 1442425905 is 5095242441.

It is a happy number.

1442425905 is a `hidden beast` number, since 1 + 44 + 24 + 2 + 590 + 5 = 666.

It is not a de Polignac number, because 1442425905 - 2⁴ = 1442425889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1442425905.

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 23 ways as a sum of consecutive naturals, for example, 150967 + ... + 160236.

It is an arithmetic number, because the mean of its divisors is an integer number (105186952).

Almost surely, 2^1442425905 is an apocalyptic number.

1442425905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1442425905 is a deficient number, since it is larger than the sum of its proper divisors (1082060943).

1442425905 is a wasteful number, since it uses less digits than its factorization.

1442425905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311317 (or 311314 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 1442425905 is about 37979.2825761625. The cubic root of 1442425905 is about 1129.8770077848.

The spelling of 1442425905 in words is "one billion, four hundred forty-two million, four hundred twenty-five thousand, nine hundred five".