1988189295 has 16 divisors (see below), whose sum is σ = 3188359680. Its totient is φ = 1057948704.

The previous prime is 1988189293. The next prime is 1988189303. The reversal of 1988189295 is 5929818891.

It is not a de Polignac number, because 1988189295 - 2¹ = 1988189293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988189293) 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 15 ways as a sum of consecutive naturals, for example, 144379 + ... + 157548.

It is an arithmetic number, because the mean of its divisors is an integer number (199272480).

Almost surely, 2^1988189295 is an apocalyptic number.

1988189295 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1988189295 is a deficient number, since it is larger than the sum of its proper divisors (1200170385).

1988189295 is a wasteful number, since it uses less digits than its factorization.

1988189295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302374.

The product of its digits is 3732480, while the sum is 60.

The square root of 1988189295 is about 44589.1163289877. The cubic root of 1988189295 is about 1257.4360592341.

The spelling of 1988189295 in words is "one billion, nine hundred eighty-eight million, one hundred eighty-nine thousand, two hundred ninety-five".