545460644 has 12 divisors (see below), whose sum is σ = 958004124. Its totient is φ = 271745184.

The previous prime is 545460637. The next prime is 545460647. The reversal of 545460644 is 446064545.

It can be written as a sum of positive squares in 2 ways, for example, as 102779044 + 442681600 = 10138^2 + 21040^2 .

It is a junction number, because it is equal to n+sod(n) for n = 545460598 and 545460607.

It is not an unprimeable number, because it can be changed into a prime (545460647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245039 + ... + 247254.

It is an arithmetic number, because the mean of its divisors is an integer number (79833677).

Almost surely, 2^545460644 is an apocalyptic number.

It is an amenable number.

545460644 is a deficient number, since it is larger than the sum of its proper divisors (412543480).

545460644 is a wasteful number, since it uses less digits than its factorization.

545460644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492574 (or 492572 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

The square root of 545460644 is about 23355.0988865387. The cubic root of 545460644 is about 817.0609857161.

The spelling of 545460644 in words is "five hundred forty-five million, four hundred sixty thousand, six hundred forty-four".