1210099984 has 40 divisors (see below), whose sum is σ = 2491601688. Its totient is φ = 567367680.

The previous prime is 1210099963. The next prime is 1210099991. The reversal of 1210099984 is 4899900121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 451584 + 1209648400 = 672^2 + 34780^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1210099984.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67314 + ... + 83374.

Almost surely, 2^1210099984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210099984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1245800844).

1210099984 is an abundant number, since it is smaller than the sum of its proper divisors (1281501704).

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

1210099984 is a wasteful number, since it uses less digits than its factorization.

1210099984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16363 (or 16357 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 1210099984 is about 34786.4914011172. The cubic root of 1210099984 is about 1065.6315866949.

The spelling of 1210099984 in words is "one billion, two hundred ten million, ninety-nine thousand, nine hundred eighty-four".