439150189 has 4 divisors (see below), whose sum is σ = 439195456. Its totient is φ = 439104924.

The previous prime is 439150111. The next prime is 439150237. The reversal of 439150189 is 981051934.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 981051934 = 2 ⋅490525967.

It is a cyclic number.

It is not a de Polignac number, because 439150189 - 2¹¹ = 439148141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439150289) 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, 1509 + ... + 29674.

It is an arithmetic number, because the mean of its divisors is an integer number (109798864).

Almost surely, 2^439150189 is an apocalyptic number.

It is an amenable number.

439150189 is a deficient number, since it is larger than the sum of its proper divisors (45267).

439150189 is a wasteful number, since it uses less digits than its factorization.

439150189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45266.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 439150189 is about 20955.9105982059. The cubic root of 439150189 is about 760.1005112911.

The spelling of 439150189 in words is "four hundred thirty-nine million, one hundred fifty thousand, one hundred eighty-nine".