189954358 has 16 divisors (see below), whose sum is σ = 311587920. Its totient is φ = 86133600.

The previous prime is 189954341. The next prime is 189954361. The reversal of 189954358 is 853459981.

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, 993 + ... + 19516.

It is an arithmetic number, because the mean of its divisors is an integer number (19474245).

Almost surely, 2^189954358 is an apocalyptic number.

189954358 is a deficient number, since it is larger than the sum of its proper divisors (121633562).

189954358 is a wasteful number, since it uses less digits than its factorization.

189954358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20943.

The product of its digits is 1555200, while the sum is 52.

The square root of 189954358 is about 13782.3930432998. The cubic root of 189954358 is about 574.8436706710.

The spelling of 189954358 in words is "one hundred eighty-nine million, nine hundred fifty-four thousand, three hundred fifty-eight".