548946644 has 6 divisors (see below), whose sum is σ = 960656634. Its totient is φ = 274473320.

The previous prime is 548946577. The next prime is 548946647. The reversal of 548946644 is 446649845.

It can be written as a sum of positive squares in only one way, i.e., 502297744 + 46648900 = 22412^2 + 6830^2 .

It is a junction number, because it is equal to n+sod(n) for n = 548946592 and 548946601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548946647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68618327 + ... + 68618334.

It is an arithmetic number, because the mean of its divisors is an integer number (160109439).

Almost surely, 2^548946644 is an apocalyptic number.

It is an amenable number.

548946644 is a deficient number, since it is larger than the sum of its proper divisors (411709990).

548946644 is a wasteful number, since it uses less digits than its factorization.

548946644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137236665 (or 137236663 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 50.

The square root of 548946644 is about 23429.6104107601. The cubic root of 548946644 is about 818.7978836164.

The spelling of 548946644 in words is "five hundred forty-eight million, nine hundred forty-six thousand, six hundred forty-four".