2158204 has 12 divisors (see below), whose sum is σ = 3833704. Its totient is φ = 1062864.

The previous prime is 2158183. The next prime is 2158223. The reversal of 2158204 is 4028512.

It is a zygodrome in base 3.

It is a congruent number.

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, 3759 + ... + 4294.

2^2158204 is an apocalyptic number.

It is an amenable number.

2158204 is a deficient number, since it is larger than the sum of its proper divisors (1675500).

2158204 is a wasteful number, since it uses less digits than its factorization.

2158204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8124 (or 8122 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2158204 is about 1469.0827069978. The cubic root of 2158204 is about 129.2302440164.

The spelling of 2158204 in words is "two million, one hundred fifty-eight thousand, two hundred four".