1157226 has 32 divisors (see below), whose sum is σ = 2695680. Its totient is φ = 324336.

The previous prime is 1157213. The next prime is 1157227. The reversal of 1157226 is 6227511.

It is a junction number, because it is equal to n+sod(n) for n = 1157196 and 1157205.

It is not an unprimeable number, because it can be changed into a prime (1157227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2245 + ... + 2711.

It is an arithmetic number, because the mean of its divisors is an integer number (84240).

2^1157226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1157226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1347840).

1157226 is an abundant number, since it is smaller than the sum of its proper divisors (1538454).

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

1157226 is a wasteful number, since it uses less digits than its factorization.

1157226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538.

The product of its digits is 840, while the sum is 24.

The square root of 1157226 is about 1075.7443934318. The cubic root of 1157226 is about 104.9879351217.

The spelling of 1157226 in words is "one million, one hundred fifty-seven thousand, two hundred twenty-six".