188829489 has 16 divisors (see below), whose sum is σ = 266872320. Its totient is φ = 118352640.

The previous prime is 188829481. The next prime is 188829493. The reversal of 188829489 is 984928881.

It is not a de Polignac number, because 188829489 - 2³ = 188829481 is a prime.

It is a super-2 number, since 2×188829489² = 71313151832002242, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (188829481) 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, 71584 + ... + 74174.

It is an arithmetic number, because the mean of its divisors is an integer number (16679520).

Almost surely, 2^188829489 is an apocalyptic number.

It is an amenable number.

188829489 is a deficient number, since it is larger than the sum of its proper divisors (78042831).

188829489 is a wasteful number, since it uses less digits than its factorization.

188829489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040.

The product of its digits is 2654208, while the sum is 57.

The square root of 188829489 is about 13741.5242604305. The cubic root of 188829489 is about 573.7067231136.

The spelling of 188829489 in words is "one hundred eighty-eight million, eight hundred twenty-nine thousand, four hundred eighty-nine".