1421045200 has 120 divisors (see below), whose sum is σ = 3487276800. Its totient is φ = 556385280.

The previous prime is 1421045107. The next prime is 1421045201. The reversal of 1421045200 is 25401241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421045201) 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, 6372289 + ... + 6372511.

It is an arithmetic number, because the mean of its divisors is an integer number (29060640).

Almost surely, 2^1421045200 is an apocalyptic number.

1421045200 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 1421045200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1743638400).

1421045200 is an abundant number, since it is smaller than the sum of its proper divisors (2066231600).

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

1421045200 is a wasteful number, since it uses less digits than its factorization.

1421045200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1421045200 is about 37696.7531758373. The cubic root of 1421045200 is about 1124.2665705135.

Adding to 1421045200 its reverse (25401241), we get a palindrome (1446446441).

The spelling of 1421045200 in words is "one billion, four hundred twenty-one million, forty-five thousand, two hundred".