540881916 has 12 divisors (see below), whose sum is σ = 1262057832. Its totient is φ = 180293968.

The previous prime is 540881909. The next prime is 540881941. The reversal of 540881916 is 619188045.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22536735 + ... + 22536758.

It is an arithmetic number, because the mean of its divisors is an integer number (105171486).

Almost surely, 2^540881916 is an apocalyptic number.

It is an amenable number.

540881916 is an abundant number, since it is smaller than the sum of its proper divisors (721175916).

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

540881916 is a wasteful number, since it uses less digits than its factorization.

540881916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45073500 (or 45073498 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 540881916 is about 23256.8681468507. The cubic root of 540881916 is about 814.7683565142.

It can be divided in two parts, 540 and 881916, that added together give a triangular number (882456 = T₁₃₂₈).

The spelling of 540881916 in words is "five hundred forty million, eight hundred eighty-one thousand, nine hundred sixteen".