549308238 has 16 divisors (see below), whose sum is σ = 1101005136. Its totient is φ = 182704640.

The previous prime is 549308237. The next prime is 549308239. The reversal of 549308238 is 832803945.

It is an interprime number because it is at equal distance from previous prime (549308237) and next prime (549308239).

It is a self number, because there is not a number n which added to its sum of digits gives 549308238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549308237) 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, 96531 + ... + 102062.

It is an arithmetic number, because the mean of its divisors is an integer number (68812821).

Almost surely, 2^549308238 is an apocalyptic number.

549308238 is an abundant number, since it is smaller than the sum of its proper divisors (551696898).

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

549308238 is a wasteful number, since it uses less digits than its factorization.

549308238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199059.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 549308238 is about 23437.3257433522. The cubic root of 549308238 is about 818.9776262932.

The spelling of 549308238 in words is "five hundred forty-nine million, three hundred eight thousand, two hundred thirty-eight".