1984664268 has 60 divisors (see below), whose sum is σ = 5355696192. Its totient is φ = 640211040.

The previous prime is 1984664257. The next prime is 1984664293. The reversal of 1984664268 is 8624664891.

1984664268 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 88755 + ... + 108842.

Almost surely, 2^1984664268 is an apocalyptic number.

1984664268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1984664268 is an abundant number, since it is smaller than the sum of its proper divisors (3371031924).

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

1984664268 is a wasteful number, since it uses less digits than its factorization.

1984664268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197644 (or 197633 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The square root of 1984664268 is about 44549.5709070245. The cubic root of 1984664268 is about 1256.6924817765.

The spelling of 1984664268 in words is "one billion, nine hundred eighty-four million, six hundred sixty-four thousand, two hundred sixty-eight".