540843880 has 16 divisors (see below), whose sum is σ = 1216898820. Its totient is φ = 216337536.

The previous prime is 540843869. The next prime is 540843883. The reversal of 540843880 is 88348045.

It can be written as a sum of positive squares in 2 ways, for example, as 506340004 + 34503876 = 22502^2 + 5874^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 13521097 = 540843880 / (5 + 4 + 0 + 8 + 4 + 3 + 8 + 8 + 0).

It is not an unprimeable number, because it can be changed into a prime (540843883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6760509 + ... + 6760588.

Almost surely, 2^540843880 is an apocalyptic number.

It is an amenable number.

540843880 is an abundant number, since it is smaller than the sum of its proper divisors (676054940).

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

540843880 is a wasteful number, since it uses less digits than its factorization.

540843880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13521108 (or 13521104 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 540843880 is about 23256.0503955422. The cubic root of 540843880 is about 814.7492573019.

The spelling of 540843880 in words is "five hundred forty million, eight hundred forty-three thousand, eight hundred eighty".