442266090649 has 8 divisors (see below), whose sum is σ = 461531387520. Its totient is φ = 423003821856.

The previous prime is 442266090611. The next prime is 442266090671. The reversal of 442266090649 is 946090662244.

It is a happy number.

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 442266090649 - 2¹⁹ = 442265566361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442266090596 and 442266090605.

It is not an unprimeable number, because it can be changed into a prime (442266090949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455997 + ... + 1045210.

It is an arithmetic number, because the mean of its divisors is an integer number (57691423440).

Almost surely, 2^442266090649 is an apocalyptic number.

It is an amenable number.

442266090649 is a deficient number, since it is larger than the sum of its proper divisors (19265296871).

442266090649 is a wasteful number, since it uses less digits than its factorization.

442266090649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514039.

The product of its (nonzero) digits is 4478976, while the sum is 52.

The spelling of 442266090649 in words is "four hundred forty-two billion, two hundred sixty-six million, ninety thousand, six hundred forty-nine".