1421041200 has 120 divisors (see below), whose sum is σ = 4750076928. Its totient is φ = 362461440.

The previous prime is 1421041199. The next prime is 1421041207. The reversal of 1421041200 is 21401241.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1421041200.

It is not an unprimeable number, because it can be changed into a prime (1421041207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1857 + ... + 53343.

Almost surely, 2^1421041200 is an apocalyptic number.

1421041200 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 1421041200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2375038464).

1421041200 is an abundant number, since it is smaller than the sum of its proper divisors (3329035728).

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

1421041200 is a wasteful number, since it uses less digits than its factorization.

1421041200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51531 (or 51520 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1421041200 is about 37696.7001208329. The cubic root of 1421041200 is about 1124.2655156396.

Adding to 1421041200 its reverse (21401241), we get a palindrome (1442442441).

It can be divided in two parts, 1421041 and 200, that added together give a palindrome (1421241).

The spelling of 1421041200 in words is "one billion, four hundred twenty-one million, forty-one thousand, two hundred".