540307779 has 8 divisors (see below), whose sum is σ = 785902272. Its totient is φ = 327459240.

The previous prime is 540307777. The next prime is 540307793. The reversal of 540307779 is 977703045.

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

It is not a de Polignac number, because 540307779 - 2¹ = 540307777 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 540307779.

It is not an unprimeable number, because it can be changed into a prime (540307777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8186449 + ... + 8186514.

It is an arithmetic number, because the mean of its divisors is an integer number (98237784).

Almost surely, 2^540307779 is an apocalyptic number.

540307779 is a deficient number, since it is larger than the sum of its proper divisors (245594493).

540307779 is a wasteful number, since it uses less digits than its factorization.

540307779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16372977.

The product of its (nonzero) digits is 185220, while the sum is 42.

The square root of 540307779 is about 23244.5214835668. The cubic root of 540307779 is about 814.4799668427.

The spelling of 540307779 in words is "five hundred forty million, three hundred seven thousand, seven hundred seventy-nine".