540285978 has 8 divisors (see below), whose sum is σ = 1080571968. Its totient is φ = 180095324.

The previous prime is 540285929. The next prime is 540285983. The reversal of 540285978 is 879582045.

It is a sphenic number, since it is the product of 3 distinct primes.

540285978 is an admirable number.

It is a Curzon 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, 45023826 + ... + 45023837.

It is an arithmetic number, because the mean of its divisors is an integer number (135071496).

Almost surely, 2^540285978 is an apocalyptic number.

540285978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

540285978 is a wasteful number, since it uses less digits than its factorization.

540285978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90047668.

The product of its (nonzero) digits is 806400, while the sum is 48.

The square root of 540285978 is about 23244.0525296257. The cubic root of 540285978 is about 814.4690121503.

It can be divided in two parts, 54028 and 5978, that added together give a palindrome (60006).

The spelling of 540285978 in words is "five hundred forty million, two hundred eighty-five thousand, nine hundred seventy-eight".