1153404 has 72 divisors (see below), whose sum is σ = 3494400. Its totient is φ = 313632.

The previous prime is 1153393. The next prime is 1153421. The reversal of 1153404 is 4043511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (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 23 ways as a sum of consecutive naturals, for example, 5697 + ... + 5895.

2^1153404 is an apocalyptic number.

1153404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1153404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1747200).

1153404 is an abundant number, since it is smaller than the sum of its proper divisors (2340996).

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

1153404 is a wasteful number, since it uses less digits than its factorization.

1153404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1153404 is about 1073.9664799238. The cubic root of 1153404 is about 104.8722255267.

Adding to 1153404 its reverse (4043511), we get a palindrome (5196915).

The spelling of 1153404 in words is "one million, one hundred fifty-three thousand, four hundred four".