13245620 has 12 divisors (see below), whose sum is σ = 27815844. Its totient is φ = 5298240.

The previous prime is 13245613. The next prime is 13245623. The reversal of 13245620 is 2654231.

It can be written as a sum of positive squares in 2 ways, for example, as 6041764 + 7203856 = 2458^2 + 2684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13245623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331121 + ... + 331160.

It is an arithmetic number, because the mean of its divisors is an integer number (2317987).

Almost surely, 2^13245620 is an apocalyptic number.

13245620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13245620 is an abundant number, since it is smaller than the sum of its proper divisors (14570224).

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

13245620 is a wasteful number, since it uses less digits than its factorization.

13245620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662290 (or 662288 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 13245620 is about 3639.4532556416. The cubic root of 13245620 is about 236.6050976080.

Adding to 13245620 its reverse (2654231), we get a palindrome (15899851).

The spelling of 13245620 in words is "thirteen million, two hundred forty-five thousand, six hundred twenty".