1894404 has 12 divisors (see below), whose sum is σ = 4420304. Its totient is φ = 631464.

The previous prime is 1894397. The next prime is 1894411. The reversal of 1894404 is 4044981.

It is an interprime number because it is at equal distance from previous prime (1894397) and next prime (1894411).

It is a tau number, because it is divible by the number of its divisors (12).

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, 78922 + ... + 78945.

2^1894404 is an apocalyptic number.

It is an amenable number.

1894404 is an abundant number, since it is smaller than the sum of its proper divisors (2525900).

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

1894404 is a wasteful number, since it uses less digits than its factorization.

1894404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157874 (or 157872 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1894404 is about 1376.3734958215. The cubic root of 1894404 is about 123.7345169896.

The spelling of 1894404 in words is "one million, eight hundred ninety-four thousand, four hundred four".