549105442 has 16 divisors (see below), whose sum is σ = 843907680. Its totient is φ = 267819552.

The previous prime is 549105437. The next prime is 549105443. The reversal of 549105442 is 244501945.

It is a junction number, because it is equal to n+sod(n) for n = 549105398 and 549105407.

It is not an unprimeable number, because it can be changed into a prime (549105443) 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, 70158 + ... + 77590.

It is an arithmetic number, because the mean of its divisors is an integer number (52744230).

Almost surely, 2^549105442 is an apocalyptic number.

549105442 is a deficient number, since it is larger than the sum of its proper divisors (294802238).

549105442 is a wasteful number, since it uses less digits than its factorization.

549105442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8337.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 549105442 is about 23432.9989971408. The cubic root of 549105442 is about 818.8768293161.

The spelling of 549105442 in words is "five hundred forty-nine million, one hundred five thousand, four hundred forty-two".