2102404 has 24 divisors (see below), whose sum is σ = 3846528. Its totient is φ = 1004640.

The previous prime is 2102383. The next prime is 2102411. The reversal of 2102404 is 4042012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9859 + ... + 10069.

It is an arithmetic number, because the mean of its divisors is an integer number (160272).

2^2102404 is an apocalyptic number.

It is an amenable number.

2102404 is a deficient number, since it is larger than the sum of its proper divisors (1744124).

2102404 is a wasteful number, since it uses less digits than its factorization.

2102404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2102404 is about 1449.9668961738. The cubic root of 2102404 is about 128.1067631390.

Adding to 2102404 its reverse (4042012), we get a palindrome (6144416).

The spelling of 2102404 in words is "two million, one hundred two thousand, four hundred four".