1226550 has 96 divisors (see below), whose sum is σ = 3562272. Its totient is φ = 276480.

The previous prime is 1226549. The next prime is 1226557. The reversal of 1226550 is 556221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33132 + ... + 33168.

It is an arithmetic number, because the mean of its divisors is an integer number (37107).

2^1226550 is an apocalyptic number.

1226550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1226550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1781136).

1226550 is an abundant number, since it is smaller than the sum of its proper divisors (2335722).

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

1226550 is a wasteful number, since it uses less digits than its factorization.

1226550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1226550 is about 1107.4971783260. The cubic root of 1226550 is about 107.0438577597.

It can be divided in two parts, 12 and 26550, that added together give a palindrome (26562).

The spelling of 1226550 in words is "one million, two hundred twenty-six thousand, five hundred fifty".