13669620 has 24 divisors (see below), whose sum is σ = 38275104. Its totient is φ = 3645216.

The previous prime is 13669609. The next prime is 13669627. The reversal of 13669620 is 2696631.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13669627) by changing a digit.

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, 113854 + ... + 113973.

It is an arithmetic number, because the mean of its divisors is an integer number (1594796).

Almost surely, 2^13669620 is an apocalyptic number.

13669620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13669620 is an abundant number, since it is smaller than the sum of its proper divisors (24605484).

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

13669620 is a wasteful number, since it uses less digits than its factorization.

13669620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227839 (or 227837 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 13669620 is about 3697.2449202075. The cubic root of 13669620 is about 239.1032507319.

The spelling of 13669620 in words is "thirteen million, six hundred sixty-nine thousand, six hundred twenty".