540389515 has 8 divisors (see below), whose sum is σ = 648698400. Its totient is φ = 432157632.

The previous prime is 540389501. The next prime is 540389533. The reversal of 540389515 is 515983045.

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

It is a cyclic number.

It is not a de Polignac number, because 540389515 - 2¹¹ = 540387467 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2479 + ... + 32968.

It is an arithmetic number, because the mean of its divisors is an integer number (81087300).

Almost surely, 2^540389515 is an apocalyptic number.

540389515 is a deficient number, since it is larger than the sum of its proper divisors (108308885).

540389515 is a wasteful number, since it uses less digits than its factorization.

540389515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38501.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 540389515 is about 23246.2795948083. The cubic root of 540389515 is about 814.5210353969.

The spelling of 540389515 in words is "five hundred forty million, three hundred eighty-nine thousand, five hundred fifteen".