1421444100 has 72 divisors (see below), whose sum is σ = 4190356800. Its totient is φ = 371895680.

The previous prime is 1421444099. The next prime is 1421444161. The reversal of 1421444100 is 14441241.

1421444100 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28800 + ... + 60599.

It is an arithmetic number, because the mean of its divisors is an integer number (58199400).

Almost surely, 2^1421444100 is an apocalyptic number.

1421444100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421444100 is an abundant number, since it is smaller than the sum of its proper divisors (2768912700).

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

1421444100 is a wasteful number, since it uses less digits than its factorization.

1421444100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89469 (or 89462 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1421444100 is about 37702.0437111836. The cubic root of 1421444100 is about 1124.3717578734.

Adding to 1421444100 its reverse (14441241), we get a palindrome (1435885341).

The spelling of 1421444100 in words is "one billion, four hundred twenty-one million, four hundred forty-four thousand, one hundred".