540802943 has 4 divisors (see below), whose sum is σ = 541017000. Its totient is φ = 540588888.

The previous prime is 540802921. The next prime is 540802949. The reversal of 540802943 is 349208045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 540802943 - 2¹² = 540798847 is a prime.

It is a super-2 number, since 2×540802943² = 584935646314922498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540802949) 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, 103193 + ... + 108306.

It is an arithmetic number, because the mean of its divisors is an integer number (135254250).

Almost surely, 2^540802943 is an apocalyptic number.

540802943 is a deficient number, since it is larger than the sum of its proper divisors (214057).

540802943 is a wasteful number, since it uses less digits than its factorization.

540802943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214056.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 540802943 is about 23255.1702423354. The cubic root of 540802943 is about 814.7287003949.

The spelling of 540802943 in words is "five hundred forty million, eight hundred two thousand, nine hundred forty-three".