538726608 has 240 divisors, whose sum is σ = 1894164480. Its totient is φ = 139366656.

The previous prime is 538726603. The next prime is 538726621. The reversal of 538726608 is 806627835.

538726608 is a `hidden beast` number, since 5 + 38 + 7 + 2 + 6 + 608 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538726603) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 439885 + ... + 441107.

It is an arithmetic number, because the mean of its divisors is an integer number (7892352).

Almost surely, 2^538726608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538726608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (947082240).

538726608 is an abundant number, since it is smaller than the sum of its proper divisors (1355437872).

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

538726608 is a wasteful number, since it uses less digits than its factorization.

538726608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286 (or 1277 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 538726608 is about 23210.4848721435. The cubic root of 538726608 is about 813.6846853083.

The spelling of 538726608 in words is "five hundred thirty-eight million, seven hundred twenty-six thousand, six hundred eight".