1442249753 has 8 divisors (see below), whose sum is σ = 1719950208. Its totient is φ = 1182465504.

The previous prime is 1442249737. The next prime is 1442249761. The reversal of 1442249753 is 3579422441.

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

It is a cyclic number.

It is not a de Polignac number, because 1442249753 - 2⁴ = 1442249737 is a prime.

It is a super-2 number, since 2×1442249753² = 4160168700057122018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442249753.

It is not an unprimeable number, because it can be changed into a prime (1442249453) 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, 4478876 + ... + 4479197.

It is an arithmetic number, because the mean of its divisors is an integer number (214993776).

Almost surely, 2^1442249753 is an apocalyptic number.

It is an amenable number.

1442249753 is a deficient number, since it is larger than the sum of its proper divisors (277700455).

1442249753 is an equidigital number, since it uses as much as digits as its factorization.

1442249753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8958103.

The product of its digits is 241920, while the sum is 41.

The square root of 1442249753 is about 37976.9634515452. The cubic root of 1442249753 is about 1129.8310116157.

The spelling of 1442249753 in words is "one billion, four hundred forty-two million, two hundred forty-nine thousand, seven hundred fifty-three".