538855646 has 12 divisors (see below), whose sum is σ = 940248288. Its totient is φ = 230938092.

The previous prime is 538855627. The next prime is 538855657. The reversal of 538855646 is 646558835.

It is a junction number, because it is equal to n+sod(n) for n = 538855594 and 538855603.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2749166 + ... + 2749361.

It is an arithmetic number, because the mean of its divisors is an integer number (78354024).

Almost surely, 2^538855646 is an apocalyptic number.

538855646 is a deficient number, since it is larger than the sum of its proper divisors (401392642).

538855646 is a wasteful number, since it uses less digits than its factorization.

538855646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5498543 (or 5498536 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 50.

The square root of 538855646 is about 23213.2644408321. The cubic root of 538855646 is about 813.7496458163.

The spelling of 538855646 in words is "five hundred thirty-eight million, eight hundred fifty-five thousand, six hundred forty-six".