189470 has 8 divisors (see below), whose sum is σ = 341064. Its totient is φ = 75784.

The previous prime is 189467. The next prime is 189473. The reversal of 189470 is 74981.

189470 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (189467) and next prime (189473).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189473) 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, 9464 + ... + 9483.

It is an arithmetic number, because the mean of its divisors is an integer number (42633).

2¹⁸⁹⁴⁷⁰ is an apocalyptic number.

189470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189470 is a deficient number, since it is larger than the sum of its proper divisors (151594).

189470 is a wasteful number, since it uses less digits than its factorization.

189470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18954.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 189470 is about 435.2815181006. The cubic root of 189470 is about 57.4354663518.

The spelling of 189470 in words is "one hundred eighty-nine thousand, four hundred seventy".