2102704 has 20 divisors (see below), whose sum is σ = 4113576. Its totient is φ = 1041152.

The previous prime is 2102693. The next prime is 2102717. The reversal of 2102704 is 4072012.

It is a super-2 number, since 2×2102704² = 8842728223232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1227 + ... + 2389.

2^2102704 is an apocalyptic number.

It is an amenable number.

2102704 is a deficient number, since it is larger than the sum of its proper divisors (2010872).

2102704 is a wasteful number, since it uses less digits than its factorization.

2102704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284 (or 1278 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 2102704 is about 1450.0703431213. The cubic root of 2102704 is about 128.1128561959.

Adding to 2102704 its reverse (4072012), we get a palindrome (6174716).

The spelling of 2102704 in words is "two million, one hundred two thousand, seven hundred four".