540815766 has 16 divisors (see below), whose sum is σ = 1082585088. Its totient is φ = 180113000.

The previous prime is 540815761. The next prime is 540815797. The reversal of 540815766 is 667518045.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540815761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32250 + ... + 46061.

It is an arithmetic number, because the mean of its divisors is an integer number (67661568).

Almost surely, 2^540815766 is an apocalyptic number.

540815766 is an abundant number, since it is smaller than the sum of its proper divisors (541769322).

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

540815766 is a wasteful number, since it uses less digits than its factorization.

540815766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79467.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 540815766 is about 23255.4459428324. The cubic root of 540815766 is about 814.7351396989.

The spelling of 540815766 in words is "five hundred forty million, eight hundred fifteen thousand, seven hundred sixty-six".