189492433 has 6 divisors (see below), whose sum is σ = 205190214. Its totient is φ = 174915936.

The previous prime is 189492427. The next prime is 189492439. The reversal of 189492433 is 334294981.

It is an interprime number because it is at equal distance from previous prime (189492427) and next prime (189492439).

It can be written as a sum of positive squares in 3 ways, for example, as 6512704 + 182979729 = 2552^2 + 13527^2 .

It is not a de Polignac number, because 189492433 - 2²¹ = 187395281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189492433.

It is not an unprimeable number, because it can be changed into a prime (189492439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 560460 + ... + 560797.

It is an arithmetic number, because the mean of its divisors is an integer number (34198369).

Almost surely, 2^189492433 is an apocalyptic number.

189492433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

189492433 is a deficient number, since it is larger than the sum of its proper divisors (15697781).

189492433 is a wasteful number, since it uses less digits than its factorization.

189492433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121283 (or 1121270 counting only the distinct ones).

The product of its digits is 186624, while the sum is 43.

The square root of 189492433 is about 13765.6250493757. The cubic root of 189492433 is about 574.3773302367.

The spelling of 189492433 in words is "one hundred eighty-nine million, four hundred ninety-two thousand, four hundred thirty-three".