1984914988 has 24 divisors (see below), whose sum is σ = 3970888992. Its totient is φ = 850450944.

The previous prime is 1984914983. The next prime is 1984914989. The reversal of 1984914988 is 8894194891.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1984914983) 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 7 ways as a sum of consecutive naturals, for example, 137406 + ... + 151162.

It is an arithmetic number, because the mean of its divisors is an integer number (165453708).

Almost surely, 2^1984914988 is an apocalyptic number.

It is an amenable number.

1984914988 is an abundant number, since it is smaller than the sum of its proper divisors (1985974004).

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

1984914988 is a wasteful number, since it uses less digits than its factorization.

1984914988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18921 (or 18919 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 61.

The square root of 1984914988 is about 44552.3847622100. The cubic root of 1984914988 is about 1256.7453983120.

The spelling of 1984914988 in words is "one billion, nine hundred eighty-four million, nine hundred fourteen thousand, nine hundred eighty-eight".