540488778 has 16 divisors (see below), whose sum is σ = 1096203456. Its totient is φ = 177625280.

The previous prime is 540488761. The next prime is 540488783. The reversal of 540488778 is 877884045.

It is a self number, because there is not a number n which added to its sum of digits gives 540488778.

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, 633951 + ... + 634802.

It is an arithmetic number, because the mean of its divisors is an integer number (68512716).

Almost surely, 2^540488778 is an apocalyptic number.

540488778 is an abundant number, since it is smaller than the sum of its proper divisors (555714678).

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

540488778 is a wasteful number, since it uses less digits than its factorization.

540488778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268829.

The product of its (nonzero) digits is 2007040, while the sum is 51.

The square root of 540488778 is about 23248.4145265865. The cubic root of 540488778 is about 814.5709048888.

It can be divided in two parts, 54048 and 8778, that added together give a palindrome (62826).

The spelling of 540488778 in words is "five hundred forty million, four hundred eighty-eight thousand, seven hundred seventy-eight".