538491364 has 48 divisors (see below), whose sum is σ = 1000137600. Its totient is φ = 253186560.

The previous prime is 538491353. The next prime is 538491379. The reversal of 538491364 is 463194835.

It is a self number, because there is not a number n which added to its sum of digits gives 538491364.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2234284 + ... + 2234524.

It is an arithmetic number, because the mean of its divisors is an integer number (20836200).

Almost surely, 2^538491364 is an apocalyptic number.

It is an amenable number.

538491364 is a deficient number, since it is larger than the sum of its proper divisors (461646236).

538491364 is a wasteful number, since it uses less digits than its factorization.

538491364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 578 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 538491364 is about 23205.4166952460. The cubic root of 538491364 is about 813.5662317145.

The spelling of 538491364 in words is "five hundred thirty-eight million, four hundred ninety-one thousand, three hundred sixty-four".