548378428 has 24 divisors (see below), whose sum is σ = 1038057552. Its totient is φ = 251977344.

The previous prime is 548378423. The next prime is 548378447. The reversal of 548378428 is 824873845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548378423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11425 + ... + 35032.

It is an arithmetic number, because the mean of its divisors is an integer number (43252398).

Almost surely, 2^548378428 is an apocalyptic number.

It is an amenable number.

548378428 is a deficient number, since it is larger than the sum of its proper divisors (489679124).

548378428 is a wasteful number, since it uses less digits than its factorization.

548378428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46701 (or 46699 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 49.

The square root of 548378428 is about 23417.4812479908. The cubic root of 548378428 is about 818.5152728598.

The spelling of 548378428 in words is "five hundred forty-eight million, three hundred seventy-eight thousand, four hundred twenty-eight".