538356906 has 96 divisors (see below), whose sum is σ = 1297296000. Its totient is φ = 160579584.

The previous prime is 538356877. The next prime is 538356961. The reversal of 538356906 is 609653835.

538356906 is a `hidden beast` number, since 5 + 3 + 83 + 569 + 0 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 699690 + ... + 700458.

It is an arithmetic number, because the mean of its divisors is an integer number (13513500).

Almost surely, 2^538356906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538356906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (648648000).

538356906 is an abundant number, since it is smaller than the sum of its proper divisors (758939094).

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

538356906 is a wasteful number, since it uses less digits than its factorization.

538356906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The square root of 538356906 is about 23202.5193890664. The cubic root of 538356906 is about 813.4985119071.

The spelling of 538356906 in words is "five hundred thirty-eight million, three hundred fifty-six thousand, nine hundred six".