1343240 has 16 divisors (see below), whose sum is σ = 3022380. Its totient is φ = 537280.

The previous prime is 1343233. The next prime is 1343257. The reversal of 1343240 is 423431.

It can be written as a sum of positive squares in 2 ways, for example, as 1110916 + 232324 = 1054^2 + 482^2 .

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, 16751 + ... + 16830.

2^1343240 is an apocalyptic number.

1343240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1343240 is an abundant number, since it is smaller than the sum of its proper divisors (1679140).

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

1343240 is a wasteful number, since it uses less digits than its factorization.

1343240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33592 (or 33588 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1343240 is about 1158.9823122033. The cubic root of 1343240 is about 110.3361617207.

Adding to 1343240 its reverse (423431), we get a palindrome (1766671).

The spelling of 1343240 in words is "one million, three hundred forty-three thousand, two hundred forty".