538332786 has 24 divisors (see below), whose sum is σ = 1171236924. Its totient is φ = 178698240.

The previous prime is 538332749. The next prime is 538332793. The reversal of 538332786 is 687233835.

538332786 is a `hidden beast` number, since 538 + 3 + 32 + 7 + 86 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 537080625 + 1252161 = 23175^2 + 1119^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57711 + ... + 66386.

Almost surely, 2^538332786 is an apocalyptic number.

538332786 is an abundant number, since it is smaller than the sum of its proper divisors (632904138).

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

538332786 is a wasteful number, since it uses less digits than its factorization.

538332786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124346 (or 124343 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 538332786 is about 23201.9996121024. Note that the first 3 decimals coincide. The cubic root of 538332786 is about 813.4863626700.

The spelling of 538332786 in words is "five hundred thirty-eight million, three hundred thirty-two thousand, seven hundred eighty-six".