1302340 has 24 divisors (see below), whose sum is σ = 2945880. Its totient is φ = 480768.

The previous prime is 1302331. The next prime is 1302347. The reversal of 1302340 is 432031.

It can be written as a sum of positive squares in 4 ways, for example, as 16384 + 1285956 = 128^2 + 1134^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 1302340.

It is not an unprimeable number, because it can be changed into a prime (1302347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2245 + ... + 2764.

It is an arithmetic number, because the mean of its divisors is an integer number (122745).

2^1302340 is an apocalyptic number.

1302340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1302340 is an abundant number, since it is smaller than the sum of its proper divisors (1643540).

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

1302340 is a wasteful number, since it uses less digits than its factorization.

1302340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031 (or 5029 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1302340 is about 1141.2011216258. The cubic root of 1302340 is about 109.2047326282.

Adding to 1302340 its reverse (432031), we get a palindrome (1734371).

The spelling of 1302340 in words is "one million, three hundred two thousand, three hundred forty".