1370240 has 32 divisors (see below), whose sum is σ = 3277260. Its totient is φ = 547840.

The previous prime is 1370227. The next prime is 1370263. The reversal of 1370240 is 420731.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1308736 + 61504 = 1144^2 + 248^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431 + ... + 1710.

2^1370240 is an apocalyptic number.

1370240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1370240 is an abundant number, since it is smaller than the sum of its proper divisors (1907020).

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

1370240 is an equidigital number, since it uses as much as digits as its factorization.

1370240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160 (or 2148 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 1370240 is about 1170.5725095012. The cubic root of 1370240 is about 111.0705392612.

Adding to 1370240 its reverse (420731), we get a palindrome (1790971).

The spelling of 1370240 in words is "one million, three hundred seventy thousand, two hundred forty".