2100002 has 8 divisors (see below), whose sum is σ = 3251712. Its totient is φ = 1016100.

The previous prime is 2100001. The next prime is 2100011. The reversal of 2100002 is 2000012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16874 + ... + 16997.

It is an arithmetic number, because the mean of its divisors is an integer number (406464).

2^2100002 is an apocalyptic number.

2100002 is a deficient number, since it is larger than the sum of its proper divisors (1151710).

2100002 is a wasteful number, since it uses less digits than its factorization.

2100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33904.

The product of its (nonzero) digits is 4, while the sum is 5.

The square root of 2100002 is about 1449.1383646843. The cubic root of 2100002 is about 128.0579571520.

Adding to 2100002 its reverse (2000012), we get a palindrome (4100014).

Multiplying 2100002 by its reverse (2000012), we get a palindrome (4200029200024).

The spelling of 2100002 in words is "two million, one hundred thousand, two".