189805414 has 4 divisors (see below), whose sum is σ = 284708124. Its totient is φ = 94902706.

The previous prime is 189805409. The next prime is 189805423. The reversal of 189805414 is 414508981.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×189805414² = 72052190367422792, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 47451352 + ... + 47451355.

It is an arithmetic number, because the mean of its divisors is an integer number (71177031).

Almost surely, 2^189805414 is an apocalyptic number.

189805414 is a deficient number, since it is larger than the sum of its proper divisors (94902710).

189805414 is an equidigital number, since it uses as much as digits as its factorization.

189805414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94902709.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 189805414 is about 13776.9885678983. The cubic root of 189805414 is about 574.6933856156.

The spelling of 189805414 in words is "one hundred eighty-nine million, eight hundred five thousand, four hundred fourteen".