538000778 has 32 divisors (see below), whose sum is σ = 948879360. Its totient is φ = 223982640.

The previous prime is 538000777. The next prime is 538000787. The reversal of 538000778 is 877000835.

It is not an unprimeable number, because it can be changed into a prime (538000777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112643 + ... + 117321.

It is an arithmetic number, because the mean of its divisors is an integer number (29652480).

Almost surely, 2^538000778 is an apocalyptic number.

538000778 is a deficient number, since it is larger than the sum of its proper divisors (410878582).

538000778 is a wasteful number, since it uses less digits than its factorization.

538000778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4922.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 538000778 is about 23194.8437804612. The cubic root of 538000778 is about 813.3190934456.

The spelling of 538000778 in words is "five hundred thirty-eight million, seven hundred seventy-eight", and thus it is an aban number.