540226778 has 16 divisors (see below), whose sum is σ = 997342080. Its totient is φ = 213716016.

The previous prime is 540226777. The next prime is 540226793. The reversal of 540226778 is 877622045.

It is a super-2 number, since 2×540226778² = 583689943336522568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (540226777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1483958 + ... + 1484321.

It is an arithmetic number, because the mean of its divisors is an integer number (62333880).

Almost surely, 2^540226778 is an apocalyptic number.

540226778 is a deficient number, since it is larger than the sum of its proper divisors (457115302).

540226778 is a wasteful number, since it uses less digits than its factorization.

540226778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968301.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 540226778 is about 23242.7790507073. The cubic root of 540226778 is about 814.4392635057.

The spelling of 540226778 in words is "five hundred forty million, two hundred twenty-six thousand, seven hundred seventy-eight".