189438602 has 16 divisors (see below), whose sum is σ = 286048800. Its totient is φ = 94091760.

The previous prime is 189438541. The next prime is 189438629. The reversal of 189438602 is 206834981.

It is a self number, because there is not a number n which added to its sum of digits gives 189438602.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 371924 + ... + 372432.

It is an arithmetic number, because the mean of its divisors is an integer number (17878050).

Almost surely, 2^189438602 is an apocalyptic number.

189438602 is a deficient number, since it is larger than the sum of its proper divisors (96610198).

189438602 is a wasteful number, since it uses less digits than its factorization.

189438602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 189438602 is about 13763.6696414873. The cubic root of 189438602 is about 574.3229353920.

The spelling of 189438602 in words is "one hundred eighty-nine million, four hundred thirty-eight thousand, six hundred two".