13122340 has 48 divisors (see below), whose sum is σ = 34360704. Its totient is φ = 4089600.

The previous prime is 13122313. The next prime is 13122341. The reversal of 13122340 is 4322131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13122341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2721 + ... + 5800.

It is an arithmetic number, because the mean of its divisors is an integer number (715848).

Almost surely, 2^13122340 is an apocalyptic number.

13122340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13122340 is an abundant number, since it is smaller than the sum of its proper divisors (21238364).

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

13122340 is a wasteful number, since it uses less digits than its factorization.

13122340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8548 (or 8546 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13122340 is about 3622.4770530674. The cubic root of 13122340 is about 235.8687626173.

Adding to 13122340 its reverse (4322131), we get a palindrome (17444471).

The spelling of 13122340 in words is "thirteen million, one hundred twenty-two thousand, three hundred forty".