442849549 has 8 divisors (see below), whose sum is σ = 470774880. Its totient is φ = 415386000.

The previous prime is 442849531. The next prime is 442849577. The reversal of 442849549 is 945948244.

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 442849549 - 2²¹ = 440752397 is a prime.

It is a super-2 number, since 2×442849549² = 392231446099006802, 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 (442849529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113467 + ... + 117304.

It is an arithmetic number, because the mean of its divisors is an integer number (58846860).

Almost surely, 2^442849549 is an apocalyptic number.

It is an amenable number.

442849549 is a deficient number, since it is larger than the sum of its proper divisors (27925331).

442849549 is a wasteful number, since it uses less digits than its factorization.

442849549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230891.

The product of its digits is 1658880, while the sum is 49.

The square root of 442849549 is about 21043.9908049780. The cubic root of 442849549 is about 762.2288844965.

The spelling of 442849549 in words is "four hundred forty-two million, eight hundred forty-nine thousand, five hundred forty-nine".