13384820 has 12 divisors (see below), whose sum is σ = 28108164. Its totient is φ = 5353920.

The previous prime is 13384807. The next prime is 13384841. The reversal of 13384820 is 2848331.

It is a happy number.

13384820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8168164 + 5216656 = 2858^2 + 2284^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334601 + ... + 334640.

It is an arithmetic number, because the mean of its divisors is an integer number (2342347).

Almost surely, 2^13384820 is an apocalyptic number.

13384820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13384820 is an abundant number, since it is smaller than the sum of its proper divisors (14723344).

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

13384820 is a wasteful number, since it uses less digits than its factorization.

13384820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669250 (or 669248 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 13384820 is about 3658.5270260038. The cubic root of 13384820 is about 237.4310492363.

The spelling of 13384820 in words is "thirteen million, three hundred eighty-four thousand, eight hundred twenty".