189570012 has 12 divisors (see below), whose sum is σ = 442330056. Its totient is φ = 63190000.

The previous prime is 189569999. The next prime is 189570037. The reversal of 189570012 is 210075981.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7898739 + ... + 7898762.

It is an arithmetic number, because the mean of its divisors is an integer number (36860838).

Almost surely, 2^189570012 is an apocalyptic number.

189570012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189570012 is an abundant number, since it is smaller than the sum of its proper divisors (252760044).

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

189570012 is a wasteful number, since it uses less digits than its factorization.

189570012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15797508 (or 15797506 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 189570012 is about 13768.4426134549. The cubic root of 189570012 is about 574.4557037080.

The spelling of 189570012 in words is "one hundred eighty-nine million, five hundred seventy thousand, twelve".