1369404 has 18 divisors (see below), whose sum is σ = 3461640. Its totient is φ = 456456.

The previous prime is 1369393. The next prime is 1369411. The reversal of 1369404 is 4049631.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18984 + ... + 19055.

2^1369404 is an apocalyptic number.

It is an amenable number.

1369404 is an abundant number, since it is smaller than the sum of its proper divisors (2092236).

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

1369404 is a wasteful number, since it uses less digits than its factorization.

1369404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38049 (or 38044 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1369404 is about 1170.2153647940. The cubic root of 1369404 is about 111.0479461726.

Adding to 1369404 its product of nonzero digits (2592), we get a triangular number (1371996 = T₁₆₅₆).

The spelling of 1369404 in words is "one million, three hundred sixty-nine thousand, four hundred four".