1313240 has 16 divisors (see below), whose sum is σ = 2954880. Its totient is φ = 525280.

The previous prime is 1313239. The next prime is 1313293. The reversal of 1313240 is 423131.

It is a congruent number.

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, 16376 + ... + 16455.

It is an arithmetic number, because the mean of its divisors is an integer number (184680).

2^1313240 is an apocalyptic number.

1313240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313240 is an abundant number, since it is smaller than the sum of its proper divisors (1641640).

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

1313240 is a wasteful number, since it uses less digits than its factorization.

1313240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32842 (or 32838 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1313240 is about 1145.9668407070. The cubic root of 1313240 is about 109.5085514196.

Adding to 1313240 its reverse (423131), we get a palindrome (1736371).

The spelling of 1313240 in words is "one million, three hundred thirteen thousand, two hundred forty".