2102002 has 24 divisors (see below), whose sum is σ = 3724380. Its totient is φ = 887040.

The previous prime is 2101961. The next prime is 2102021. The reversal of 2102002 is 2002012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2099601 + 2401 = 1449^2 + 49^2 .

It is a Harshad number since it is a multiple of its sum of digits (7).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8602 + ... + 8842.

2^2102002 is an apocalyptic number.

2102002 is a deficient number, since it is larger than the sum of its proper divisors (1622378).

2102002 is a wasteful number, since it uses less digits than its factorization.

2102002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 2102002 is about 1449.8282656922. The cubic root of 2102002 is about 128.0985975341.

Adding to 2102002 its reverse (2002012), we get a palindrome (4104014).

The spelling of 2102002 in words is "two million, one hundred two thousand, two".