538404508 has 6 divisors (see below), whose sum is σ = 942207896. Its totient is φ = 269202252.

The previous prime is 538404499. The next prime is 538404509. The reversal of 538404508 is 805404835.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538404509) 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 as a sum of consecutive naturals, namely, 67300560 + ... + 67300567.

Almost surely, 2^538404508 is an apocalyptic number.

It is an amenable number.

538404508 is a deficient number, since it is larger than the sum of its proper divisors (403803388).

538404508 is a wasteful number, since it uses less digits than its factorization.

538404508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134601131 (or 134601129 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

The square root of 538404508 is about 23203.5451601690. The cubic root of 538404508 is about 813.5224879562.

The spelling of 538404508 in words is "five hundred thirty-eight million, four hundred four thousand, five hundred eight".