1341440 has 48 divisors (see below), whose sum is σ = 3243240. Its totient is φ = 532480.

The previous prime is 1341437. The next prime is 1341443. The reversal of 1341440 is 441431.

It is an interprime number because it is at equal distance from previous prime (1341437) and next prime (1341443).

It is a super-2 number, since 2×1341440² = 3598922547200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1341443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10175 + ... + 10305.

2^1341440 is an apocalyptic number.

1341440 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 1341440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1621620).

1341440 is an abundant number, since it is smaller than the sum of its proper divisors (1901800).

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

1341440 is an equidigital number, since it uses as much as digits as its factorization.

1341440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 138 counting only the distinct ones).

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

The square root of 1341440 is about 1158.2055085346. The cubic root of 1341440 is about 110.2868546050.

Adding to 1341440 its reverse (441431), we get a palindrome (1782871).

Subtracting from 1341440 its reverse (441431), we obtain a palindrome (900009).

The spelling of 1341440 in words is "one million, three hundred forty-one thousand, four hundred forty".