540391885 has 16 divisors (see below), whose sum is σ = 707990400. Its totient is φ = 392696640.

The previous prime is 540391883. The next prime is 540391927. The reversal of 540391885 is 588193045.

540391885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 540391885 - 2¹ = 540391883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540391883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82024 + ... + 88366.

It is an arithmetic number, because the mean of its divisors is an integer number (44249400).

Almost surely, 2^540391885 is an apocalyptic number.

540391885 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

540391885 is a deficient number, since it is larger than the sum of its proper divisors (167598515).

540391885 is a wasteful number, since it uses less digits than its factorization.

540391885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7908.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 540391885 is about 23246.3305706514. The cubic root of 540391885 is about 814.5222261504.

The spelling of 540391885 in words is "five hundred forty million, three hundred ninety-one thousand, eight hundred eighty-five".