1442256949 has 4 divisors (see below), whose sum is σ = 1648293664. Its totient is φ = 1236220236.

The previous prime is 1442256917. The next prime is 1442256953. The reversal of 1442256949 is 9496522441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1442256949 - 2⁵ = 1442256917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1442256899 and 1442256908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442256979) 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 in 3 ways as a sum of consecutive naturals, for example, 103018347 + ... + 103018360.

It is an arithmetic number, because the mean of its divisors is an integer number (412073416).

Almost surely, 2^1442256949 is an apocalyptic number.

It is an amenable number.

1442256949 is a deficient number, since it is larger than the sum of its proper divisors (206036715).

1442256949 is an equidigital number, since it uses as much as digits as its factorization.

1442256949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206036714.

The product of its digits is 622080, while the sum is 46.

The square root of 1442256949 is about 37977.0581930723. The cubic root of 1442256949 is about 1129.8328906824.

The spelling of 1442256949 in words is "one billion, four hundred forty-two million, two hundred fifty-six thousand, nine hundred forty-nine".