1156404 has 24 divisors (see below), whose sum is σ = 2792160. Its totient is φ = 372064.

The previous prime is 1156403. The next prime is 1156423. The reversal of 1156404 is 4046511.

It is a super-2 number, since 2×1156404² = 2674540422432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1314 + ... + 2009.

It is an arithmetic number, because the mean of its divisors is an integer number (116340).

2^1156404 is an apocalyptic number.

It is an amenable number.

1156404 is an abundant number, since it is smaller than the sum of its proper divisors (1635756).

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

1156404 is a wasteful number, since it uses less digits than its factorization.

1156404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359 (or 3357 counting only the distinct ones).

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

The square root of 1156404 is about 1075.3622645416. The cubic root of 1156404 is about 104.9630709136.

The spelling of 1156404 in words is "one million, one hundred fifty-six thousand, four hundred four".