1421300244 has 192 divisors, whose sum is σ = 4370831360. Its totient is φ = 348986880.

The previous prime is 1421300201. The next prime is 1421300281. The reversal of 1421300244 is 4420031241.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1421300244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1265067 + ... + 1266189.

Almost surely, 2^1421300244 is an apocalyptic number.

1421300244 is a gapful number since it is divisible by the number (14) 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 1421300244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2185415680).

1421300244 is an abundant number, since it is smaller than the sum of its proper divisors (2949531116).

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

1421300244 is a wasteful number, since it uses less digits than its factorization.

1421300244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1421300244 is about 37700.1358618242. The cubic root of 1421300244 is about 1124.3338262421. Note that the first 3 decimals are identical.

Adding to 1421300244 its reverse (4420031241), we get a palindrome (5841331485).

The spelling of 1421300244 in words is "one billion, four hundred twenty-one million, three hundred thousand, two hundred forty-four".