540802 has 8 divisors (see below), whose sum is σ = 814716. Its totient is φ = 269232.

The previous prime is 540781. The next prime is 540803. The reversal of 540802 is 208045.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 395641 + 145161 = 629^2 + 381^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 540802.

It is not an unprimeable number, because it can be changed into a prime (540803) by changing a digit.

540802 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208 + ... + 1060.

2⁵⁴⁰⁸⁰² is an apocalyptic number.

540802 is a deficient number, since it is larger than the sum of its proper divisors (273914).

540802 is a wasteful number, since it uses less digits than its factorization.

540802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 540802 is about 735.3924122535. The cubic root of 540802 is about 81.4728226846.

Adding to 540802 its reverse (208045), we get a palindrome (748847).

The spelling of 540802 in words is "five hundred forty thousand, eight hundred two".