1248200000 has 126 divisors (see below), whose sum is σ = 3135607902. Its totient is φ = 492960000.

The previous prime is 1248199999. The next prime is 1248200021. The reversal of 1248200000 is 28421.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 3 ways, for example, as 576768256 + 671431744 = 24016^2 + 25912^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 15799961 + ... + 15800039.

It is an arithmetic number, because the mean of its divisors is an integer number (24885777).

Almost surely, 2^1248200000 is an apocalyptic number.

1248200000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1248200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1567803951).

1248200000 is an abundant number, since it is smaller than the sum of its proper divisors (1887407902).

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

1248200000 is an frugal number, since it uses more digits than its factorization.

1248200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1248200000 is about 35329.8740444967. The cubic root of 1248200000 is about 1076.7000323007.

Adding to 1248200000 its reverse (28421), we get a palindrome (1248228421).

The spelling of 1248200000 in words is "one billion, two hundred forty-eight million, two hundred thousand".