13342820 has 12 divisors (see below), whose sum is σ = 28019964. Its totient is φ = 5337120.

The previous prime is 13342789. The next prime is 13342853. The reversal of 13342820 is 2824331.

It can be written as a sum of positive squares in 2 ways, for example, as 9935104 + 3407716 = 3152^2 + 1846^2 .

It is a nialpdrome in base 16.

It is an unprimeable number.

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, 333551 + ... + 333590.

It is an arithmetic number, because the mean of its divisors is an integer number (2334997).

Almost surely, 2^13342820 is an apocalyptic number.

13342820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13342820 is an abundant number, since it is smaller than the sum of its proper divisors (14677144).

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

13342820 is a wasteful number, since it uses less digits than its factorization.

13342820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667150 (or 667148 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 13342820 is about 3652.7825010531. The cubic root of 13342820 is about 237.1824454020.

The spelling of 13342820 in words is "thirteen million, three hundred forty-two thousand, eight hundred twenty".