1262144 has 56 divisors (see below), whose sum is σ = 2837688. Its totient is φ = 552960.

The previous prime is 1262143. The next prime is 1262147. The reversal of 1262144 is 4412621.

It can be written as a sum of positive squares in 4 ways, for example, as 25600 + 1236544 = 160^2 + 1112^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1262143) 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, 30764 + ... + 30804.

It is an arithmetic number, because the mean of its divisors is an integer number (50673).

2^1262144 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 1262144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1418844).

1262144 is an abundant number, since it is smaller than the sum of its proper divisors (1575544).

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

1262144 is a wasteful number, since it uses less digits than its factorization.

1262144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 93 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 1262144 is about 1123.4518236222. The cubic root of 1262144 is about 108.0694569217.

Adding to 1262144 its reverse (4412621), we get a palindrome (5674765).

The spelling of 1262144 in words is "one million, two hundred sixty-two thousand, one hundred forty-four".