538155212 has 12 divisors (see below), whose sum is σ = 1076310480. Its totient is φ = 230637936.

The previous prime is 538155199. The next prime is 538155227. The reversal of 538155212 is 212551835.

538155212 is an admirable number.

It is a super-2 number, since 2×538155212² = 579222064405529888, which contains 22 as substring.

It is an unprimeable number.

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, 9609887 + ... + 9609942.

It is an arithmetic number, because the mean of its divisors is an integer number (89692540).

Almost surely, 2^538155212 is an apocalyptic number.

It is an amenable number.

538155212 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.

538155212 is a wasteful number, since it uses less digits than its factorization.

538155212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19219840 (or 19219838 counting only the distinct ones).

The product of its digits is 12000, while the sum is 32.

The square root of 538155212 is about 23198.1726004442. The cubic root of 538155212 is about 813.3969075242.

The spelling of 538155212 in words is "five hundred thirty-eight million, one hundred fifty-five thousand, two hundred twelve".