540406589 has 8 divisors (see below), whose sum is σ = 543782400. Its totient is φ = 537037776.

The previous prime is 540406583. The next prime is 540406639. The reversal of 540406589 is 985604045.

It is a happy number.

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 540406589 - 2¹² = 540402493 is a prime.

It is a super-2 number, since 2×540406589² = 584078562869229842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540406583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310967 + ... + 312699.

It is an arithmetic number, because the mean of its divisors is an integer number (67972800).

Almost surely, 2^540406589 is an apocalyptic number.

It is an amenable number.

540406589 is a deficient number, since it is larger than the sum of its proper divisors (3375811).

540406589 is a wasteful number, since it uses less digits than its factorization.

540406589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3499.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 540406589 is about 23246.6468334683. The cubic root of 540406589 is about 814.5296137682.

The spelling of 540406589 in words is "five hundred forty million, four hundred six thousand, five hundred eighty-nine".