13365620 has 24 divisors (see below), whose sum is σ = 28141344. Its totient is φ = 5332256.

The previous prime is 13365581. The next prime is 13365623. The reversal of 13365620 is 2656331.

It is a self number, because there is not a number n which added to its sum of digits gives 13365620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13365623) 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, 10667 + ... + 11853.

It is an arithmetic number, because the mean of its divisors is an integer number (1172556).

Almost surely, 2^13365620 is an apocalyptic number.

13365620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13365620 is an abundant number, since it is smaller than the sum of its proper divisors (14775724).

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

13365620 is a wasteful number, since it uses less digits than its factorization.

13365620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759 (or 1757 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 13365620 is about 3655.9020774632. The cubic root of 13365620 is about 237.3174663956.

The spelling of 13365620 in words is "thirteen million, three hundred sixty-five thousand, six hundred twenty".