540698 has 8 divisors (see below), whose sum is σ = 814260. Its totient is φ = 269280.

The previous prime is 540697. The next prime is 540703. The reversal of 540698 is 896045.

It can be written as a sum of positive squares in 2 ways, for example, as 458329 + 82369 = 677^2 + 287^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (540691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488 + ... + 1148.

2⁵⁴⁰⁶⁹⁸ is an apocalyptic number.

540698 is a deficient number, since it is larger than the sum of its proper divisors (273562).

540698 is a wasteful number, since it uses less digits than its factorization.

540698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 540698 is about 735.3216983063. The cubic root of 540698 is about 81.4675997523.

The spelling of 540698 in words is "five hundred forty thousand, six hundred ninety-eight".