13802820 has 24 divisors (see below), whose sum is σ = 38648064. Its totient is φ = 3680736.

The previous prime is 13802807. The next prime is 13802849. The reversal of 13802820 is 2820831.

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 7 ways as a sum of consecutive naturals, for example, 114964 + ... + 115083.

It is an arithmetic number, because the mean of its divisors is an integer number (1610336).

Almost surely, 2^13802820 is an apocalyptic number.

13802820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13802820 is an abundant number, since it is smaller than the sum of its proper divisors (24845244).

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

13802820 is a wasteful number, since it uses less digits than its factorization.

13802820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230059 (or 230057 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 13802820 is about 3715.2146640537. The cubic root of 13802820 is about 239.8773679053.

The spelling of 13802820 in words is "thirteen million, eight hundred two thousand, eight hundred twenty".