540189477 has 24 divisors (see below), whose sum is σ = 840473088. Its totient is φ = 333352800.

The previous prime is 540189469. The next prime is 540189499. The reversal of 540189477 is 774981045.

It is a happy number.

540189477 is a `hidden beast` number, since 540 + 18 + 94 + 7 + 7 = 666.

It is not a de Polignac number, because 540189477 - 2³ = 540189469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540189407) 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 23 ways as a sum of consecutive naturals, for example, 35674 + ... + 48507.

It is an arithmetic number, because the mean of its divisors is an integer number (35019712).

Almost surely, 2^540189477 is an apocalyptic number.

It is an amenable number.

540189477 is a deficient number, since it is larger than the sum of its proper divisors (300283611).

540189477 is a wasteful number, since it uses less digits than its factorization.

540189477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84241 (or 84238 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 540189477 is about 23241.9766155979. The cubic root of 540189477 is about 814.4205182309.

The spelling of 540189477 in words is "five hundred forty million, one hundred eighty-nine thousand, four hundred seventy-seven".