549423898 has 4 divisors (see below), whose sum is σ = 824135850. Its totient is φ = 274711948.

The previous prime is 549423883. The next prime is 549423923. The reversal of 549423898 is 898324945.

549423898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 543962329 + 5461569 = 23323^2 + 2337^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137355973 + ... + 137355976.

Almost surely, 2^549423898 is an apocalyptic number.

549423898 is a deficient number, since it is larger than the sum of its proper divisors (274711952).

549423898 is a wasteful number, since it uses less digits than its factorization.

549423898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274711951.

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

The square root of 549423898 is about 23439.7930451615. The cubic root of 549423898 is about 819.0351024048.

It can be divided in two parts, 5494238 and 98, that added together give a square (5494336 = 2344²).

The spelling of 549423898 in words is "five hundred forty-nine million, four hundred twenty-three thousand, eight hundred ninety-eight".