1398234189 has 32 divisors (see below), whose sum is σ = 2092667904. Its totient is φ = 823236480.

The previous prime is 1398234151. The next prime is 1398234209. The reversal of 1398234189 is 9814328931.

It is not a de Polignac number, because 1398234189 - 2²⁹ = 861363277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398234389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157072 + ... + 165734.

It is an arithmetic number, because the mean of its divisors is an integer number (65395872).

Almost surely, 2^1398234189 is an apocalyptic number.

It is an amenable number.

1398234189 is a deficient number, since it is larger than the sum of its proper divisors (694433715).

1398234189 is a wasteful number, since it uses less digits than its factorization.

1398234189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8817.

The product of its digits is 373248, while the sum is 48.

The square root of 1398234189 is about 37392.9697804280. The cubic root of 1398234189 is about 1118.2184124769.

It can be divided in two parts, 139 and 8234189, that added together give a palindrome (8234328).

The spelling of 1398234189 in words is "one billion, three hundred ninety-eight million, two hundred thirty-four thousand, one hundred eighty-nine".