11573226 has 64 divisors (see below), whose sum is σ = 31138560. Its totient is φ = 3110400.

The previous prime is 11573203. The next prime is 11573231. The reversal of 11573226 is 62237511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 11573226.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5526 + ... + 7326.

It is an arithmetic number, because the mean of its divisors is an integer number (486540).

Almost surely, 2^11573226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11573226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15569280).

11573226 is an abundant number, since it is smaller than the sum of its proper divisors (19565334).

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

11573226 is a wasteful number, since it uses less digits than its factorization.

11573226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836 (or 1830 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 11573226 is about 3401.9444439908. The cubic root of 11573226 is about 226.1959430493.

The spelling of 11573226 in words is "eleven million, five hundred seventy-three thousand, two hundred twenty-six".