540443688 has 32 divisors (see below), whose sum is σ = 1351730400. Its totient is φ = 180065088.

The previous prime is 540443653. The next prime is 540443707. The reversal of 540443688 is 886344045.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70995 + ... + 78237.

It is an arithmetic number, because the mean of its divisors is an integer number (42241575).

Almost surely, 2^540443688 is an apocalyptic number.

It is an amenable number.

540443688 is an abundant number, since it is smaller than the sum of its proper divisors (811286712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

540443688 is a wasteful number, since it uses less digits than its factorization.

540443688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10361 (or 10357 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 42.

The square root of 540443688 is about 23247.4447628121. Note that the first 3 decimals coincide. The cubic root of 540443688 is about 814.5482525384.

The spelling of 540443688 in words is "five hundred forty million, four hundred forty-three thousand, six hundred eighty-eight".