548640417 has 24 divisors (see below), whose sum is σ = 795145248. Its totient is φ = 336336000.

The previous prime is 548640401. The next prime is 548640427. The reversal of 548640417 is 714046845.

It is not a de Polignac number, because 548640417 - 2⁴ = 548640401 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (548640427) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 140542 + ... + 144392.

It is an arithmetic number, because the mean of its divisors is an integer number (33131052).

Almost surely, 2^548640417 is an apocalyptic number.

It is an amenable number.

548640417 is a deficient number, since it is larger than the sum of its proper divisors (246504831).

548640417 is a wasteful number, since it uses less digits than its factorization.

548640417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4161 (or 4148 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 548640417 is about 23423.0744566122. The cubic root of 548640417 is about 818.6456012644.

The spelling of 548640417 in words is "five hundred forty-eight million, six hundred forty thousand, four hundred seventeen".