1165404 has 12 divisors (see below), whose sum is σ = 2719304. Its totient is φ = 388464.

The previous prime is 1165399. The next prime is 1165421. The reversal of 1165404 is 4045611.

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

It is an Ulam number.

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, 48547 + ... + 48570.

2^1165404 is an apocalyptic number.

It is an amenable number.

1165404 is an abundant number, since it is smaller than the sum of its proper divisors (1553900).

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

1165404 is a wasteful number, since it uses less digits than its factorization.

1165404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97124 (or 97122 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1165404 is about 1079.5387904101. The cubic root of 1165404 is about 105.2346678862.

The spelling of 1165404 in words is "one million, one hundred sixty-five thousand, four hundred four".