2153804 has 12 divisors (see below), whose sum is σ = 3780504. Its totient is φ = 1073664.

The previous prime is 2153797. The next prime is 2153813. The reversal of 2153804 is 4083512.

It is a self number, because there is not a number n which added to its sum of digits gives 2153804.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1292 + ... + 2444.

It is an arithmetic number, because the mean of its divisors is an integer number (315042).

2^2153804 is an apocalyptic number.

It is an amenable number.

2153804 is a deficient number, since it is larger than the sum of its proper divisors (1626700).

2153804 is a wasteful number, since it uses less digits than its factorization.

2153804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624 (or 1622 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2153804 is about 1467.5844098382. The cubic root of 2153804 is about 129.1423623135.

The spelling of 2153804 in words is "two million, one hundred fifty-three thousand, eight hundred four".