549888946 has 4 divisors (see below), whose sum is σ = 824833422. Its totient is φ = 274944472.

The previous prime is 549888917. The next prime is 549888967. The reversal of 549888946 is 649888945.

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., 526473025 + 23415921 = 22945^2 + 4839^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137472235 + ... + 137472238.

Almost surely, 2^549888946 is an apocalyptic number.

549888946 is a deficient number, since it is larger than the sum of its proper divisors (274944476).

549888946 is a wasteful number, since it uses less digits than its factorization.

549888946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274944475.

The product of its digits is 19906560, while the sum is 61.

The square root of 549888946 is about 23449.7110003514. The cubic root of 549888946 is about 819.2661220981.

Subtracting 549888946 from its reverse (649888945), we obtain a palindrome (99999999).

The spelling of 549888946 in words is "five hundred forty-nine million, eight hundred eighty-eight thousand, nine hundred forty-six".