189930430 has 8 divisors (see below), whose sum is σ = 341874792. Its totient is φ = 75972168.

The previous prime is 189930427. The next prime is 189930437. The reversal of 189930430 is 34039981.

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

It is a self number, because there is not a number n which added to its sum of digits gives 189930430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189930437) 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, 9496512 + ... + 9496531.

It is an arithmetic number, because the mean of its divisors is an integer number (42734349).

Almost surely, 2^189930430 is an apocalyptic number.

189930430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189930430 is a deficient number, since it is larger than the sum of its proper divisors (151944362).

189930430 is a wasteful number, since it uses less digits than its factorization.

189930430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18993050.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 189930430 is about 13781.5249519057. The cubic root of 189930430 is about 574.8195325270.

The spelling of 189930430 in words is "one hundred eighty-nine million, nine hundred thirty thousand, four hundred thirty".