442784853 has 16 divisors (see below), whose sum is σ = 749688960. Its totient is φ = 253019808.

The previous prime is 442784851. The next prime is 442784857. The reversal of 442784853 is 358487244.

It is a happy number.

It is not a de Polignac number, because 442784853 - 2¹ = 442784851 is a prime.

It is a super-4 number, since 4×442784853⁴ (a number of 36 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442784799 and 442784808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442784851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1171200 + ... + 1171577.

It is an arithmetic number, because the mean of its divisors is an integer number (46855560).

Almost surely, 2^442784853 is an apocalyptic number.

It is an amenable number.

442784853 is a deficient number, since it is larger than the sum of its proper divisors (306904107).

442784853 is a wasteful number, since it uses less digits than its factorization.

442784853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2342793 (or 2342787 counting only the distinct ones).

The product of its digits is 860160, while the sum is 45.

The square root of 442784853 is about 21042.4535879255. The cubic root of 442784853 is about 762.1917646202.

The spelling of 442784853 in words is "four hundred forty-two million, seven hundred eighty-four thousand, eight hundred fifty-three".