8549442 has 64 divisors (see below), whose sum is σ = 21340800. Its totient is φ = 2514240.

The previous prime is 8549417. The next prime is 8549503. The reversal of 8549442 is 2449458.

It is a super-2 number, since 2×8549442² = 146185917022728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8549397 and 8549406.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21784 + ... + 22172.

It is an arithmetic number, because the mean of its divisors is an integer number (333450).

Almost surely, 2^8549442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8549442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10670400).

8549442 is an abundant number, since it is smaller than the sum of its proper divisors (12791358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8549442 is a wasteful number, since it uses less digits than its factorization.

8549442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 442 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 8549442 is about 2923.9428858991. The cubic root of 8549442 is about 204.4776868029.

It can be divided in two parts, 854 and 9442, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 8549442 in words is "eight million, five hundred forty-nine thousand, four hundred forty-two".