540665744 has 20 divisors (see below), whose sum is σ = 1059312780. Its totient is φ = 267294720.

The previous prime is 540665731. The next prime is 540665747. The reversal of 540665744 is 447566045.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 376825744 + 163840000 = 19412^2 + 12800^2 .

It is a super-3 number, since 3×540665744³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (540665747) 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 in 3 ways as a sum of consecutive naturals, for example, 188417 + ... + 191264.

It is an arithmetic number, because the mean of its divisors is an integer number (52965639).

Almost surely, 2^540665744 is an apocalyptic number.

It is an amenable number.

540665744 is a deficient number, since it is larger than the sum of its proper divisors (518647036).

540665744 is a wasteful number, since it uses less digits than its factorization.

540665744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379778 (or 379772 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 41.

The square root of 540665744 is about 23252.2201950695. The cubic root of 540665744 is about 814.6597970366.

The spelling of 540665744 in words is "five hundred forty million, six hundred sixty-five thousand, seven hundred forty-four".