1344240 has 60 divisors (see below), whose sum is σ = 4516824. Its totient is φ = 358272.

The previous prime is 1344227. The next prime is 1344271. The reversal of 1344240 is 424431.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214 + ... + 1653.

2^1344240 is an apocalyptic number.

1344240 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 1344240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2258412).

1344240 is an abundant number, since it is smaller than the sum of its proper divisors (3172584).

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

1344240 is a wasteful number, since it uses less digits than its factorization.

1344240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886 (or 1877 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1344240 is about 1159.4136449085. The cubic root of 1344240 is about 110.3635355314.

Adding to 1344240 its reverse (424431), we get a palindrome (1768671).

It can be divided in two parts, 13 and 44240, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 1344240 in words is "one million, three hundred forty-four thousand, two hundred forty".