540190564 has 9 divisors (see below), whose sum is σ = 945414841. Its totient is φ = 270072040.

The previous prime is 540190561. The next prime is 540190591. The reversal of 540190564 is 465091045.

The square root of 540190564 is 23242.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 40220964 + 499969600 = 6342^2 + 22360^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540190561) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 40674 + ... + 52294.

Almost surely, 2^540190564 is an apocalyptic number.

540190564 is the 23242-nd square number.

It is an amenable number.

540190564 is a deficient number, since it is larger than the sum of its proper divisors (405224277).

540190564 is an frugal number, since it uses more digits than its factorization.

540190564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23246 (or 11623 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The cubic root of 540190564 is about 814.4210645050.

The spelling of 540190564 in words is "five hundred forty million, one hundred ninety thousand, five hundred sixty-four".