1442471649 has 8 divisors (see below), whose sum is σ = 1930959072. Its totient is φ = 957816000.

The previous prime is 1442471647. The next prime is 1442471651. The reversal of 1442471649 is 9461742441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1442471647) and next prime (1442471651).

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

It is not a de Polignac number, because 1442471649 - 2¹ = 1442471647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1442471649.

It is not an unprimeable number, because it can be changed into a prime (1442471647) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 957064 + ... + 958569.

It is an arithmetic number, because the mean of its divisors is an integer number (241369884).

Almost surely, 2^1442471649 is an apocalyptic number.

It is an amenable number.

1442471649 is a deficient number, since it is larger than the sum of its proper divisors (488487423).

1442471649 is a wasteful number, since it uses less digits than its factorization.

1442471649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915887.

The product of its digits is 193536, while the sum is 42.

The square root of 1442471649 is about 37979.8847944540. The cubic root of 1442471649 is about 1129.8889516790. Note that the first 3 decimals are identical.

The spelling of 1442471649 in words is "one billion, four hundred forty-two million, four hundred seventy-one thousand, six hundred forty-nine".