538636326 has 8 divisors (see below), whose sum is σ = 1077272664. Its totient is φ = 179545440.

The previous prime is 538636321. The next prime is 538636327. The reversal of 538636326 is 623636835.

It is a sphenic number, since it is the product of 3 distinct primes.

538636326 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538636321) 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 3 ways as a sum of consecutive naturals, for example, 44886355 + ... + 44886366.

It is an arithmetic number, because the mean of its divisors is an integer number (134659083).

Almost surely, 2^538636326 is an apocalyptic number.

538636326 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

538636326 is a wasteful number, since it uses less digits than its factorization.

538636326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89772726.

The product of its digits is 466560, while the sum is 42.

The square root of 538636326 is about 23208.5399368422. The cubic root of 538636326 is about 813.6392292373.

The spelling of 538636326 in words is "five hundred thirty-eight million, six hundred thirty-six thousand, three hundred twenty-six".