1240448 has 32 divisors (see below), whose sum is σ = 2698920. Its totient is φ = 563200.

The previous prime is 1240423. The next prime is 1240483. The reversal of 1240448 is 8440421.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1240448² = 3077422481408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 968 + ... + 1848.

2^1240448 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 1240448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1349460).

1240448 is an abundant number, since it is smaller than the sum of its proper divisors (1458472).

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

1240448 is an equidigital number, since it uses as much as digits as its factorization.

1240448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 894 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1240448 is about 1113.7540123385. The cubic root of 1240448 is about 107.4466437940.

Adding to 1240448 its reverse (8440421), we get a palindrome (9680869).

The spelling of 1240448 in words is "one million, two hundred forty thousand, four hundred forty-eight".