1230340 has 24 divisors (see below), whose sum is σ = 2604672. Its totient is φ = 488160.

The previous prime is 1230337. The next prime is 1230343. The reversal of 1230340 is 430321.

It is an interprime number because it is at equal distance from previous prime (1230337) and next prime (1230343).

It is a self number, because there is not a number n which added to its sum of digits gives 1230340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230343) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4405 + ... + 4675.

It is an arithmetic number, because the mean of its divisors is an integer number (108528).

2^1230340 is an apocalyptic number.

1230340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230340 is an abundant number, since it is smaller than the sum of its proper divisors (1374332).

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

1230340 is a wasteful number, since it uses less digits than its factorization.

1230340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 505 counting only the distinct ones).

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

The square root of 1230340 is about 1109.2069238875. The cubic root of 1230340 is about 107.1539984182.

Adding to 1230340 its reverse (430321), we get a palindrome (1660661).

The spelling of 1230340 in words is "one million, two hundred thirty thousand, three hundred forty".