13809052 has 24 divisors (see below), whose sum is σ = 24667776. Its totient is φ = 6763008.

The previous prime is 13809031. The next prime is 13809053. The reversal of 13809052 is 25090831.

It is a self number, because there is not a number n which added to its sum of digits gives 13809052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13809053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61813 + ... + 62035.

It is an arithmetic number, because the mean of its divisors is an integer number (1027824).

Almost surely, 2^13809052 is an apocalyptic number.

It is an amenable number.

13809052 is a deficient number, since it is larger than the sum of its proper divisors (10858724).

13809052 is a wasteful number, since it uses less digits than its factorization.

13809052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 13809052 is about 3716.0532827181. The cubic root of 13809052 is about 239.9134641722.

Adding to 13809052 its reverse (25090831), we get a palindrome (38899883).

The spelling of 13809052 in words is "thirteen million, eight hundred nine thousand, fifty-two".