1988934 has 8 divisors (see below), whose sum is σ = 3977880. Its totient is φ = 662976.

The previous prime is 1988933. The next prime is 1988941. The reversal of 1988934 is 4398891.

It is a sphenic number, since it is the product of 3 distinct primes.

1988934 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165739 + ... + 165750.

It is an arithmetic number, because the mean of its divisors is an integer number (497235).

2^1988934 is an apocalyptic number.

1988934 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1988934 is a wasteful number, since it uses less digits than its factorization.

1988934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331494.

The product of its digits is 62208, while the sum is 42.

The square root of 1988934 is about 1410.2957136714. The cubic root of 1988934 is about 125.7593036579.

The spelling of 1988934 in words is "one million, nine hundred eighty-eight thousand, nine hundred thirty-four".