189340 has 12 divisors (see below), whose sum is σ = 397656. Its totient is φ = 75728.

The previous prime is 189337. The next prime is 189347. The reversal of 189340 is 43981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189347) 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, 4714 + ... + 4753.

It is an arithmetic number, because the mean of its divisors is an integer number (33138).

2¹⁸⁹³⁴⁰ is an apocalyptic number.

189340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189340 is an abundant number, since it is smaller than the sum of its proper divisors (208316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189340 is a wasteful number, since it uses less digits than its factorization.

189340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9476 (or 9474 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 189340 is about 435.1321638307. The cubic root of 189340 is about 57.4223273870.

It can be divided in two parts, 189 and 340, that added together give a square (529 = 23²).

The spelling of 189340 in words is "one hundred eighty-nine thousand, three hundred forty".