1348440 has 64 divisors (see below), whose sum is σ = 4289760. Its totient is φ = 337920.

The previous prime is 1348427. The next prime is 1348441. The reversal of 1348440 is 448431.

1348440 = T₃₁ + T₃₂ + ... + T₂₀₀.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1348440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1348441) 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, 1710 + ... + 2370.

2^1348440 is an apocalyptic number.

1348440 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 1348440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2144880).

1348440 is an abundant number, since it is smaller than the sum of its proper divisors (2941320).

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

1348440 is a wasteful number, since it uses less digits than its factorization.

1348440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1348440 is about 1161.2234927007. The cubic root of 1348440 is about 110.4783575203.

Subtracting from 1348440 its reverse (448431), we obtain a palindrome (900009).

The spelling of 1348440 in words is "one million, three hundred forty-eight thousand, four hundred forty".