540978 has 8 divisors (see below), whose sum is σ = 1081968. Its totient is φ = 180324.

The previous prime is 540961. The next prime is 540989. The reversal of 540978 is 879045.

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

540978 is an admirable 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, 45076 + ... + 45087.

It is an arithmetic number, because the mean of its divisors is an integer number (135246).

2⁵⁴⁰⁹⁷⁸ is an apocalyptic number.

540978 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.

540978 is a wasteful number, since it uses less digits than its factorization.

540978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90168.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 540978 is about 735.5120665224. The cubic root of 540978 is about 81.4816599680.

The spelling of 540978 in words is "five hundred forty thousand, nine hundred seventy-eight".