1999252248 has 128 divisors (see below), whose sum is σ = 5955256320. Its totient is φ = 547274880.

The previous prime is 1999252243. The next prime is 1999252271. The reversal of 1999252248 is 8422529991.

It is a super-2 number, since 2×1999252248² = 7994019102266107008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1999252248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1999252243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 534561 + ... + 538287.

It is an arithmetic number, because the mean of its divisors is an integer number (46525440).

Almost surely, 2^1999252248 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 1999252248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2977628160).

1999252248 is an abundant number, since it is smaller than the sum of its proper divisors (3956004072).

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

1999252248 is a wasteful number, since it uses less digits than its factorization.

1999252248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877 (or 3873 counting only the distinct ones).

The product of its digits is 933120, while the sum is 51.

The square root of 1999252248 is about 44712.9986469259. The cubic root of 1999252248 is about 1259.7640122416.

The spelling of 1999252248 in words is "one billion, nine hundred ninety-nine million, two hundred fifty-two thousand, two hundred forty-eight".