538904386 has 16 divisors (see below), whose sum is σ = 856422936. Its totient is φ = 253449216.

The previous prime is 538904351. The next prime is 538904447. The reversal of 538904386 is 683409835.

It can be written as a sum of positive squares in 4 ways, for example, as 471975625 + 66928761 = 21725^2 + 8181^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 68950 + ... + 76366.

Almost surely, 2^538904386 is an apocalyptic number.

538904386 is a deficient number, since it is larger than the sum of its proper divisors (317518550).

538904386 is a wasteful number, since it uses less digits than its factorization.

538904386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9573.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 538904386 is about 23214.3142478946. The cubic root of 538904386 is about 813.7741798836.

The spelling of 538904386 in words is "five hundred thirty-eight million, nine hundred four thousand, three hundred eighty-six".