2173404 has 24 divisors (see below), whose sum is σ = 5111680. Its totient is φ = 718704.

The previous prime is 2173393. The next prime is 2173411. The reversal of 2173404 is 4043712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1017 + ... + 2319.

2^2173404 is an apocalyptic number.

It is an amenable number.

2173404 is an abundant number, since it is smaller than the sum of its proper divisors (2938276).

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

2173404 is a wasteful number, since it uses less digits than its factorization.

2173404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449 (or 1447 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 2173404 is about 1474.2469264001. The cubic root of 2173404 is about 129.5329194844.

The spelling of 2173404 in words is "two million, one hundred seventy-three thousand, four hundred four".