13265420 has 48 divisors (see below), whose sum is σ = 33519360. Its totient is φ = 4307904.

The previous prime is 13265419. The next prime is 13265431. The reversal of 13265420 is 2456231.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167 + ... + 5153.

It is an arithmetic number, because the mean of its divisors is an integer number (698320).

Almost surely, 2^13265420 is an apocalyptic number.

13265420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13265420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16759680).

13265420 is an abundant number, since it is smaller than the sum of its proper divisors (20253940).

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

13265420 is a wasteful number, since it uses less digits than its factorization.

13265420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5022 (or 5020 counting only the distinct ones).

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

The square root of 13265420 is about 3642.1724286475. The cubic root of 13265420 is about 236.7229340084.

The spelling of 13265420 in words is "thirteen million, two hundred sixty-five thousand, four hundred twenty".