1442347653 has 16 divisors (see below), whose sum is σ = 1976255360. Its totient is φ = 935032896.

The previous prime is 1442347619. The next prime is 1442347661. The reversal of 1442347653 is 3567432441.

It is not a de Polignac number, because 1442347653 - 2⁸ = 1442347397 is a prime.

It is a super-2 number, since 2×1442347653² = 4160733504229216818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442347663) 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 15 ways as a sum of consecutive naturals, for example, 291363 + ... + 296271.

It is an arithmetic number, because the mean of its divisors is an integer number (123515960).

Almost surely, 2^1442347653 is an apocalyptic number.

It is an amenable number.

1442347653 is a deficient number, since it is larger than the sum of its proper divisors (533907707).

1442347653 is a wasteful number, since it uses less digits than its factorization.

1442347653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7596.

The product of its digits is 241920, while the sum is 39.

The square root of 1442347653 is about 37978.2523689545. The cubic root of 1442347653 is about 1129.8565753697.

The spelling of 1442347653 in words is "one billion, four hundred forty-two million, three hundred forty-seven thousand, six hundred fifty-three".