1421343200 has 72 divisors (see below), whose sum is σ = 3475918152. Its totient is φ = 567544320.

The previous prime is 1421343173. The next prime is 1421343227. The reversal of 1421343200 is 23431241.

It is an interprime number because it is at equal distance from previous prime (1421343173) and next prime (1421343227).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 604427 + ... + 606773.

It is an arithmetic number, because the mean of its divisors is an integer number (48276641).

Almost surely, 2^1421343200 is an apocalyptic number.

1421343200 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 1421343200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1737959076).

1421343200 is an abundant number, since it is smaller than the sum of its proper divisors (2054574952).

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

1421343200 is a wasteful number, since it uses less digits than its factorization.

1421343200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3124 (or 3111 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1421343200 is about 37700.7055636894. The cubic root of 1421343200 is about 1124.3451530530.

Adding to 1421343200 its reverse (23431241), we get a palindrome (1444774441).

The spelling of 1421343200 in words is "one billion, four hundred twenty-one million, three hundred forty-three thousand, two hundred".