189211924 has 24 divisors (see below), whose sum is σ = 361620000. Its totient is φ = 85910880.

The previous prime is 189211877. The next prime is 189211951. The reversal of 189211924 is 429112981.

189211924 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

189211924 is a modest number, since divided by 11924 gives 1892 as remainder.

189211924 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52327 + ... + 55825.

It is an arithmetic number, because the mean of its divisors is an integer number (15067500).

Almost surely, 2^189211924 is an apocalyptic number.

It is an amenable number.

189211924 is a deficient number, since it is larger than the sum of its proper divisors (172408076).

189211924 is a wasteful number, since it uses less digits than its factorization.

189211924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4743 (or 4741 counting only the distinct ones).

The product of its digits is 10368, while the sum is 37.

The square root of 189211924 is about 13755.4325268237. The cubic root of 189211924 is about 574.0937699640.

The spelling of 189211924 in words is "one hundred eighty-nine million, two hundred eleven thousand, nine hundred twenty-four".