189430417 has 16 divisors (see below), whose sum is σ = 213057792. Its totient is φ = 166907520.

The previous prime is 189430393. The next prime is 189430441. The reversal of 189430417 is 714034981.

189430417 is digitally balanced in base 2, because in such base 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 (189430393) and next prime (189430441).

It is a cyclic number.

It is not a de Polignac number, because 189430417 - 2¹⁹ = 188906129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189430457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126648 + ... + 128134.

It is an arithmetic number, because the mean of its divisors is an integer number (13316112).

Almost surely, 2^189430417 is an apocalyptic number.

It is an amenable number.

189430417 is a deficient number, since it is larger than the sum of its proper divisors (23627375).

189430417 is a wasteful number, since it uses less digits than its factorization.

189430417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 189430417 is about 13763.3722975149. The cubic root of 189430417 is about 574.3146637570.

The spelling of 189430417 in words is "one hundred eighty-nine million, four hundred thirty thousand, four hundred seventeen".