540688440 has 32 divisors (see below), whose sum is σ = 1622065680. Its totient is φ = 144183552.

The previous prime is 540688427. The next prime is 540688469. The reversal of 540688440 is 44886045.

It is a congruent number.

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, 2252749 + ... + 2252988.

Almost surely, 2^540688440 is an apocalyptic number.

It is an amenable number.

540688440 is an abundant number, since it is smaller than the sum of its proper divisors (1081377240).

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

540688440 is a wasteful number, since it uses less digits than its factorization.

540688440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4505751 (or 4505747 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The square root of 540688440 is about 23252.7082293655. The cubic root of 540688440 is about 814.6711961066.

The spelling of 540688440 in words is "five hundred forty million, six hundred eighty-eight thousand, four hundred forty".