189419734 has 32 divisors (see below), whose sum is σ = 336771072. Its totient is φ = 78192000.

The previous prime is 189419731. The next prime is 189419771. The reversal of 189419734 is 437914981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189419731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103689 + ... + 105499.

It is an arithmetic number, because the mean of its divisors is an integer number (10524096).

Almost surely, 2^189419734 is an apocalyptic number.

189419734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

189419734 is a deficient number, since it is larger than the sum of its proper divisors (147351338).

189419734 is a wasteful number, since it uses less digits than its factorization.

189419734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092.

The product of its digits is 217728, while the sum is 46.

The square root of 189419734 is about 13762.9841967504. The cubic root of 189419734 is about 574.3038673231.

The spelling of 189419734 in words is "one hundred eighty-nine million, four hundred nineteen thousand, seven hundred thirty-four".