548346440 has 16 divisors (see below), whose sum is σ = 1233779580. Its totient is φ = 219338560.

The previous prime is 548346439. The next prime is 548346443. The reversal of 548346440 is 44643845.

It can be written as a sum of positive squares in 2 ways, for example, as 548215396 + 131044 = 23414^2 + 362^2 .

It is a junction number, because it is equal to n+sod(n) for n = 548346394 and 548346403.

It is not an unprimeable number, because it can be changed into a prime (548346443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6854291 + ... + 6854370.

Almost surely, 2^548346440 is an apocalyptic number.

It is an amenable number.

548346440 is an abundant number, since it is smaller than the sum of its proper divisors (685433140).

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

548346440 is a wasteful number, since it uses less digits than its factorization.

548346440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13708672 (or 13708668 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 38.

The square root of 548346440 is about 23416.7982439957. The cubic root of 548346440 is about 818.4993573446.

The spelling of 548346440 in words is "five hundred forty-eight million, three hundred forty-six thousand, four hundred forty".