545631928 has 8 divisors (see below), whose sum is σ = 1023059880. Its totient is φ = 272815960.

The previous prime is 545631923. The next prime is 545631937. The reversal of 545631928 is 829136545.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545631923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34101988 + ... + 34102003.

It is an arithmetic number, because the mean of its divisors is an integer number (127882485).

Almost surely, 2^545631928 is an apocalyptic number.

It is an amenable number.

545631928 is a deficient number, since it is larger than the sum of its proper divisors (477427952).

545631928 is a wasteful number, since it uses less digits than its factorization.

545631928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68203997 (or 68203993 counting only the distinct ones).

The product of its digits is 259200, while the sum is 43.

The square root of 545631928 is about 23358.7655495747. The cubic root of 545631928 is about 817.1465004879.

The spelling of 545631928 in words is "five hundred forty-five million, six hundred thirty-one thousand, nine hundred twenty-eight".