1886404 has 12 divisors (see below), whose sum is σ = 3555244. Its totient is φ = 870624.

The previous prime is 1886389. The next prime is 1886411. The reversal of 1886404 is 4046881.

It can be written as a sum of positive squares in 2 ways, for example, as 906304 + 980100 = 952^2 + 990^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 18087 + ... + 18190.

2^1886404 is an apocalyptic number.

It is an amenable number.

1886404 is a deficient number, since it is larger than the sum of its proper divisors (1668840).

1886404 is a wasteful number, since it uses less digits than its factorization.

1886404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36294 (or 36292 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 1886404 is about 1373.4642332438. The cubic root of 1886404 is about 123.5600957612.

The spelling of 1886404 in words is "one million, eight hundred eighty-six thousand, four hundred four".