545930 has 32 divisors (see below), whose sum is σ = 1226880. Its totient is φ = 169920.

The previous prime is 545929. The next prime is 545933. The reversal of 545930 is 39545.

It is a self number, because there is not a number n which added to its sum of digits gives 545930.

It is not an unprimeable number, because it can be changed into a prime (545933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416 + ... + 1124.

It is an arithmetic number, because the mean of its divisors is an integer number (38340).

2⁵⁴⁵⁹³⁰ is an apocalyptic number.

545930 is an abundant number, since it is smaller than the sum of its proper divisors (680950).

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

545930 is a wasteful number, since it uses less digits than its factorization.

545930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 545930 is about 738.8707600115. The cubic root of 545930 is about 81.7295272422.

The spelling of 545930 in words is "five hundred forty-five thousand, nine hundred thirty".