1266244 has 24 divisors (see below), whose sum is σ = 2596608. Its totient is φ = 528960.

The previous prime is 1266241. The next prime is 1266247. The reversal of 1266244 is 4426621.

1266244 = 122² + 123² + ... + 177².

It is an interprime number because it is at equal distance from previous prime (1266241) and next prime (1266247).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597 + ... + 1699.

It is an arithmetic number, because the mean of its divisors is an integer number (108192).

2^1266244 is an apocalyptic number.

1266244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1266244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1298304).

1266244 is an abundant number, since it is smaller than the sum of its proper divisors (1330364).

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

1266244 is a wasteful number, since it uses less digits than its factorization.

1266244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155 (or 1153 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 1266244 is about 1125.2750774811. The cubic root of 1266244 is about 108.1863495159.

The spelling of 1266244 in words is "one million, two hundred sixty-six thousand, two hundred forty-four".