178396012 has 12 divisors (see below), whose sum is σ = 312832296. Its totient is φ = 89015360.

The previous prime is 178396007. The next prime is 178396019. The reversal of 178396012 is 210693871.

It is not an unprimeable number, because it can be changed into a prime (178396019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43453 + ... + 47380.

It is an arithmetic number, because the mean of its divisors is an integer number (26069358).

Almost surely, 2^178396012 is an apocalyptic number.

It is an amenable number.

178396012 is a deficient number, since it is larger than the sum of its proper divisors (134436284).

178396012 is a wasteful number, since it uses less digits than its factorization.

178396012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91328 (or 91326 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 178396012 is about 13356.4969958444. The cubic root of 178396012 is about 562.9394881052.

The spelling of 178396012 in words is "one hundred seventy-eight million, three hundred ninety-six thousand, twelve".