549205340 has 24 divisors (see below), whose sum is σ = 1177872192. Its totient is φ = 215007680.

The previous prime is 549205337. The next prime is 549205343. The reversal of 549205340 is 43502945.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (549205337) and next prime (549205343).

It is a junction number, because it is equal to n+sod(n) for n = 549205297 and 549205306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549205343) 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, 291191 + ... + 293070.

It is an arithmetic number, because the mean of its divisors is an integer number (49078008).

Almost surely, 2^549205340 is an apocalyptic number.

It is an amenable number.

549205340 is an abundant number, since it is smaller than the sum of its proper divisors (628666852).

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

549205340 is a wasteful number, since it uses less digits than its factorization.

549205340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584317 (or 584315 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 549205340 is about 23435.1304668867. The cubic root of 549205340 is about 818.9264853511.

The spelling of 549205340 in words is "five hundred forty-nine million, two hundred five thousand, three hundred forty".