189373556 has 12 divisors (see below), whose sum is σ = 331504992. Its totient is φ = 94657848.

The previous prime is 189373553. The next prime is 189373573. The reversal of 189373556 is 655373981.

189373556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 189373556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189373553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15281 + ... + 24743.

It is an arithmetic number, because the mean of its divisors is an integer number (27625416).

Almost surely, 2^189373556 is an apocalyptic number.

It is an amenable number.

189373556 is a deficient number, since it is larger than the sum of its proper divisors (142131436).

189373556 is a wasteful number, since it uses less digits than its factorization.

189373556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14470 (or 14468 counting only the distinct ones).

The product of its digits is 680400, while the sum is 47.

The square root of 189373556 is about 13761.3064786742. The cubic root of 189373556 is about 574.2571943273.

The spelling of 189373556 in words is "one hundred eighty-nine million, three hundred seventy-three thousand, five hundred fifty-six".