548385390 has 192 divisors, whose sum is σ = 1711696896. Its totient is φ = 123731712.

The previous prime is 548385377. The next prime is 548385401. The reversal of 548385390 is 93583845.

It is a happy number.

548385390 is a `hidden beast` number, since 5 + 483 + 85 + 3 + 90 = 666.

548385390 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1751874 + ... + 1752186.

It is an arithmetic number, because the mean of its divisors is an integer number (8915088).

Almost surely, 2^548385390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 548385390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (855848448).

548385390 is an abundant number, since it is smaller than the sum of its proper divisors (1163311506).

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

548385390 is a wasteful number, since it uses less digits than its factorization.

548385390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 548385390 is about 23417.6298971523. The cubic root of 548385390 is about 818.5187366961.

The spelling of 548385390 in words is "five hundred forty-eight million, three hundred eighty-five thousand, three hundred ninety".