549944146 has 4 divisors (see below), whose sum is σ = 824916222. Its totient is φ = 274972072.

The previous prime is 549944137. The next prime is 549944147. The reversal of 549944146 is 641449945.

549944146 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., 505575225 + 44368921 = 22485^2 + 6661^2 .

It is a junction number, because it is equal to n+sod(n) for n = 549944096 and 549944105.

It is not an unprimeable number, because it can be changed into a prime (549944147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137486035 + ... + 137486038.

Almost surely, 2^549944146 is an apocalyptic number.

549944146 is a deficient number, since it is larger than the sum of its proper divisors (274972076).

549944146 is a wasteful number, since it uses less digits than its factorization.

549944146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274972075.

The product of its digits is 622080, while the sum is 46.

The square root of 549944146 is about 23450.8879576019. The cubic root of 549944146 is about 819.2935348919.

The spelling of 549944146 in words is "five hundred forty-nine million, nine hundred forty-four thousand, one hundred forty-six".