1342240 has 24 divisors (see below), whose sum is σ = 3171420. Its totient is φ = 536832.

The previous prime is 1342223. The next prime is 1342241. The reversal of 1342240 is 422431.

It can be written as a sum of positive squares in 2 ways, for example, as 1317904 + 24336 = 1148^2 + 156^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1342241) 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, 4035 + ... + 4354.

2^1342240 is an apocalyptic number.

1342240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1342240 is an abundant number, since it is smaller than the sum of its proper divisors (1829180).

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

1342240 is an equidigital number, since it uses as much as digits as its factorization.

1342240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8404 (or 8396 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1342240 is about 1158.5508189113. The cubic root of 1342240 is about 110.3087743206.

Adding to 1342240 its reverse (422431), we get a palindrome (1764671).

The spelling of 1342240 in words is "one million, three hundred forty-two thousand, two hundred forty".