1420002100 has 72 divisors (see below), whose sum is σ = 3375283968. Its totient is φ = 514252800.

The previous prime is 1420002091. The next prime is 1420002121. The reversal of 1420002100 is 12000241.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280189 + ... + 285211.

It is an arithmetic number, because the mean of its divisors is an integer number (46878944).

Almost surely, 2^1420002100 is an apocalyptic number.

1420002100 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 1420002100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1687641984).

1420002100 is an abundant number, since it is smaller than the sum of its proper divisors (1955281868).

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

1420002100 is a wasteful number, since it uses less digits than its factorization.

1420002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5305 (or 5298 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1420002100 is about 37682.9152269301. The cubic root of 1420002100 is about 1123.9914186940.

Adding to 1420002100 its reverse (12000241), we get a palindrome (1432002341).

The spelling of 1420002100 in words is "one billion, four hundred twenty million, two thousand, one hundred".