540442915 has 4 divisors (see below), whose sum is σ = 648531504. Its totient is φ = 432354328.

The previous prime is 540442913. The next prime is 540442919. The reversal of 540442915 is 519244045.

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 540442915 - 2¹ = 540442913 is a prime.

It is a super-3 number, since 3×540442915³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540442913) 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, 54044287 + ... + 54044296.

It is an arithmetic number, because the mean of its divisors is an integer number (162132876).

Almost surely, 2^540442915 is an apocalyptic number.

540442915 is a deficient number, since it is larger than the sum of its proper divisors (108088589).

540442915 is a wasteful number, since it uses less digits than its factorization.

540442915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108088588.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 540442915 is about 23247.4281373231. The cubic root of 540442915 is about 814.5478641870.

The spelling of 540442915 in words is "five hundred forty million, four hundred forty-two thousand, nine hundred fifteen".