189347430 has 32 divisors (see below), whose sum is σ = 465520608. Its totient is φ = 49260800.

The previous prime is 189347423. The next prime is 189347449. The reversal of 189347430 is 34743981.

189347430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75741 + ... + 78200.

It is an arithmetic number, because the mean of its divisors is an integer number (14547519).

Almost surely, 2^189347430 is an apocalyptic number.

189347430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189347430 is an abundant number, since it is smaller than the sum of its proper divisors (276173178).

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

189347430 is a wasteful number, since it uses less digits than its factorization.

189347430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153992.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 189347430 is about 13760.3571901314. The cubic root of 189347430 is about 574.2307849141.

The spelling of 189347430 in words is "one hundred eighty-nine million, three hundred forty-seven thousand, four hundred thirty".