189624340 has 12 divisors (see below), whose sum is σ = 398211156. Its totient is φ = 75849728.

The previous prime is 189624329. The next prime is 189624349. The reversal of 189624340 is 43426981.

189624340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 140090896 + 49533444 = 11836^2 + 7038^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 189624340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189624349) 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, 4740589 + ... + 4740628.

It is an arithmetic number, because the mean of its divisors is an integer number (33184263).

Almost surely, 2^189624340 is an apocalyptic number.

189624340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189624340 is an abundant number, since it is smaller than the sum of its proper divisors (208586816).

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

189624340 is a wasteful number, since it uses less digits than its factorization.

189624340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9481226 (or 9481224 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 189624340 is about 13770.4153895226. The cubic root of 189624340 is about 574.5105753414.

The spelling of 189624340 in words is "one hundred eighty-nine million, six hundred twenty-four thousand, three hundred forty".