540187786 has 8 divisors (see below), whose sum is σ = 813435300. Its totient is φ = 269042688.

The previous prime is 540187783. The next prime is 540187847. The reversal of 540187786 is 687781045.

It can be written as a sum of positive squares in 2 ways, for example, as 313113025 + 227074761 = 17695^2 + 15069^2 .

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 (540187783) 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 3 ways as a sum of consecutive naturals, for example, 524961 + ... + 525988.

Almost surely, 2^540187786 is an apocalyptic number.

540187786 is a deficient number, since it is larger than the sum of its proper divisors (273247514).

540187786 is a wasteful number, since it uses less digits than its factorization.

540187786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051208.

The product of its (nonzero) digits is 376320, while the sum is 46.

The square root of 540187786 is about 23241.9402374242. The cubic root of 540187786 is about 814.4196684139.

The spelling of 540187786 in words is "five hundred forty million, one hundred eighty-seven thousand, seven hundred eighty-six".