545566940 has 24 divisors (see below), whose sum is σ = 1152098640. Its totient is φ = 217006208.

The previous prime is 545566939. The next prime is 545566949. The reversal of 545566940 is 49665545.

It is a junction number, because it is equal to n+sod(n) for n = 545566891 and 545566900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545566949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72617 + ... + 79776.

It is an arithmetic number, because the mean of its divisors is an integer number (48004110).

Almost surely, 2^545566940 is an apocalyptic number.

It is an amenable number.

545566940 is an abundant number, since it is smaller than the sum of its proper divisors (606531700).

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

545566940 is a wasteful number, since it uses less digits than its factorization.

545566940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152581 (or 152579 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 44.

The square root of 545566940 is about 23357.3744243654. The cubic root of 545566940 is about 817.1140568676.

The spelling of 545566940 in words is "five hundred forty-five million, five hundred sixty-six thousand, nine hundred forty".