548621442 has 24 divisors (see below), whose sum is σ = 1189110780. Its totient is φ = 182807520.

The previous prime is 548621431. The next prime is 548621443. The reversal of 548621442 is 244126845.

548621442 is a `hidden beast` number, since 548 + 62 + 14 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 479215881 + 69405561 = 21891^2 + 8331^2 .

It is a junction number, because it is equal to n+sod(n) for n = 548621397 and 548621406.

It is not an unprimeable number, because it can be changed into a prime (548621443) 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 11 ways as a sum of consecutive naturals, for example, 92692 + ... + 98432.

Almost surely, 2^548621442 is an apocalyptic number.

548621442 is an abundant number, since it is smaller than the sum of its proper divisors (640489338).

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

548621442 is a wasteful number, since it uses less digits than its factorization.

548621442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11058 (or 11055 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 548621442 is about 23422.6694038062. The cubic root of 548621442 is about 818.6361634013.

The spelling of 548621442 in words is "five hundred forty-eight million, six hundred twenty-one thousand, four hundred forty-two".