1989066248 has 16 divisors (see below), whose sum is σ = 4016383980. Its totient is φ = 918030528.

The previous prime is 1989066227. The next prime is 1989066257. The reversal of 1989066248 is 8426609891.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1962667204 + 26399044 = 44302^2 + 5138^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1989066248.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9562715 + ... + 9562922.

Almost surely, 2^1989066248 is an apocalyptic number.

It is an amenable number.

1989066248 is an abundant number, since it is smaller than the sum of its proper divisors (2027317732).

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

1989066248 is a wasteful number, since it uses less digits than its factorization.

1989066248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19125656 (or 19125652 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 53.

The square root of 1989066248 is about 44598.9489562254. The cubic root of 1989066248 is about 1257.6209092110.

The spelling of 1989066248 in words is "one billion, nine hundred eighty-nine million, sixty-six thousand, two hundred forty-eight".