1226544 has 80 divisors (see below), whose sum is σ = 3642624. Its totient is φ = 352000.

The previous prime is 1226539. The next prime is 1226549. The reversal of 1226544 is 4456221.

It is an interprime number because it is at equal distance from previous prime (1226539) and next prime (1226549).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1226549) 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, 12094 + ... + 12194.

2^1226544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1226544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1821312).

1226544 is an abundant number, since it is smaller than the sum of its proper divisors (2416080).

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

1226544 is a wasteful number, since it uses less digits than its factorization.

1226544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 140 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 1226544 is about 1107.4944695122. The cubic root of 1226544 is about 107.0436832147.

It can be divided in two parts, 1226 and 544, that added together give a triangular number (1770 = T₅₉).

The spelling of 1226544 in words is "one million, two hundred twenty-six thousand, five hundred forty-four".