189771416 has 16 divisors (see below), whose sum is σ = 356948640. Its totient is φ = 94585120.

The previous prime is 189771377. The next prime is 189771419. The reversal of 189771416 is 614177981.

189771416 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189771419) 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, 34880 + ... + 39951.

It is an arithmetic number, because the mean of its divisors is an integer number (22309290).

Almost surely, 2^189771416 is an apocalyptic number.

It is an amenable number.

189771416 is a deficient number, since it is larger than the sum of its proper divisors (167177224).

189771416 is a wasteful number, since it uses less digits than its factorization.

189771416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75154 (or 75150 counting only the distinct ones).

The product of its digits is 84672, while the sum is 44.

The square root of 189771416 is about 13775.7546435758. The cubic root of 189771416 is about 574.6590704855.

The spelling of 189771416 in words is "one hundred eighty-nine million, seven hundred seventy-one thousand, four hundred sixteen".