2102104004 has 48 divisors (see below), whose sum is σ = 4939218816. Its totient is φ = 756000000.

The previous prime is 2102103973. The next prime is 2102104013. The reversal of 2102104004 is 4004012012.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a self number, because there is not a number n which added to its sum of digits gives 2102104004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258497 + ... + 266504.

It is an arithmetic number, because the mean of its divisors is an integer number (102900392).

Almost surely, 2^2102104004 is an apocalyptic number.

It is an amenable number.

2102104004 is an abundant number, since it is smaller than the sum of its proper divisors (2837114812).

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

2102104004 is a wasteful number, since it uses less digits than its factorization.

2102104004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525036 (or 525034 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2102104004 is about 45848.7077680495. The cubic root of 2102104004 is about 1281.0066958381.

Adding to 2102104004 its reverse (4004012012), we get a palindrome (6106116016).

The spelling of 2102104004 in words is "two billion, one hundred two million, one hundred four thousand, four".