540415688 has 12 divisors (see below), whose sum is σ = 1013402715. Its totient is φ = 270174968.

The previous prime is 540415663. The next prime is 540415693. The reversal of 540415688 is 886514045.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 270207844 + 270207844 = 16438^2 + 16438^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=16438.

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 61643 + ... + 69861.

Almost surely, 2^540415688 is an apocalyptic number.

It is an amenable number.

540415688 is a deficient number, since it is larger than the sum of its proper divisors (472987027).

540415688 is an frugal number, since it uses more digits than its factorization.

540415688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16444 (or 8221 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 41.

The square root of 540415688 is about 23246.8425382889. The cubic root of 540415688 is about 814.5341852418.

The spelling of 540415688 in words is "five hundred forty million, four hundred fifteen thousand, six hundred eighty-eight".