1262240 has 96 divisors (see below), whose sum is σ = 3628800. Its totient is φ = 413952.

The previous prime is 1262237. The next prime is 1262269. The reversal of 1262240 is 422621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54869 + ... + 54891.

It is an arithmetic number, because the mean of its divisors is an integer number (37800).

2^1262240 is an apocalyptic number.

1262240 is a gapful number since it is divisible by the number (10) 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 1262240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1814400).

1262240 is an abundant number, since it is smaller than the sum of its proper divisors (2366560).

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

1262240 is an equidigital number, since it uses as much as digits as its factorization.

1262240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1262240 is about 1123.4945482734. The cubic root of 1262240 is about 108.0721968111.

Adding to 1262240 its reverse (422621), we get a palindrome (1684861).

The spelling of 1262240 in words is "one million, two hundred sixty-two thousand, two hundred forty".