1421248200 has 192 divisors, whose sum is σ = 4630953600. Its totient is φ = 359884800.

The previous prime is 1421248193. The next prime is 1421248217. The reversal of 1421248200 is 28421241.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2497516 + ... + 2498084.

It is an arithmetic number, because the mean of its divisors is an integer number (24119550).

Almost surely, 2^1421248200 is an apocalyptic number.

1421248200 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 1421248200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2315476800).

1421248200 is an abundant number, since it is smaller than the sum of its proper divisors (3209705400).

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

1421248200 is a wasteful number, since it uses less digits than its factorization.

1421248200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 1421248200 is about 37699.4456192661. The cubic root of 1421248200 is about 1124.3201027650.

Adding to 1421248200 its reverse (28421241), we get a palindrome (1449669441).

The spelling of 1421248200 in words is "one billion, four hundred twenty-one million, two hundred forty-eight thousand, two hundred".