548940640 has 24 divisors (see below), whose sum is σ = 1296872640. Its totient is φ = 219576192.

The previous prime is 548940629. The next prime is 548940649. The reversal of 548940640 is 46049845.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 548940593 and 548940602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548940649) 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 in 3 ways as a sum of consecutive naturals, for example, 1715280 + ... + 1715599.

It is an arithmetic number, because the mean of its divisors is an integer number (54036360).

Almost surely, 2^548940640 is an apocalyptic number.

It is an amenable number.

548940640 is an abundant number, since it is smaller than the sum of its proper divisors (747932000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

548940640 is a wasteful number, since it uses less digits than its factorization.

548940640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3430894 (or 3430886 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 548940640 is about 23429.4822819455. The cubic root of 548940640 is about 818.7948984566.

The spelling of 548940640 in words is "five hundred forty-eight million, nine hundred forty thousand, six hundred forty".