549828394 has 8 divisors (see below), whose sum is σ = 832041540. Its totient is φ = 272481216.

The previous prime is 549828361. The next prime is 549828397. The reversal of 549828394 is 493828945.

It can be written as a sum of positive squares in 2 ways, for example, as 501177769 + 48650625 = 22387^2 + 6975^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×549828394² = 604622525697238472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (549828397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1216209 + ... + 1216660.

Almost surely, 2^549828394 is an apocalyptic number.

549828394 is a deficient number, since it is larger than the sum of its proper divisors (282213146).

549828394 is a wasteful number, since it uses less digits than its factorization.

549828394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432984.

The product of its digits is 2488320, while the sum is 52.

The square root of 549828394 is about 23448.4198614747. The cubic root of 549828394 is about 819.2360493452.

The spelling of 549828394 in words is "five hundred forty-nine million, eight hundred twenty-eight thousand, three hundred ninety-four".