1156224 has 32 divisors (see below), whose sum is σ = 3072240. Its totient is φ = 385280.

The previous prime is 1156217. The next prime is 1156229. The reversal of 1156224 is 4226511.

It is a tau number, because it is divible by the number of its divisors (32).

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 1156224.

It is not an unprimeable number, because it can be changed into a prime (1156229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1122 + ... + 1889.

2^1156224 is an apocalyptic number.

It is an amenable number.

1156224 is an abundant number, since it is smaller than the sum of its proper divisors (1916016).

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

1156224 is an equidigital number, since it uses as much as digits as its factorization.

1156224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028 (or 3016 counting only the distinct ones).

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

The square root of 1156224 is about 1075.2785685579. The cubic root of 1156224 is about 104.9576246240.

The spelling of 1156224 in words is "one million, one hundred fifty-six thousand, two hundred twenty-four".