13469638 has 24 divisors (see below), whose sum is σ = 25008048. Its totient is φ = 5327712.

The previous prime is 13469629. The next prime is 13469639. The reversal of 13469638 is 83696431.

It is a super-2 number, since 2×13469638² = 362862295702088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13469638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13469639) 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 11 ways as a sum of consecutive naturals, for example, 481 + ... + 5212.

It is an arithmetic number, because the mean of its divisors is an integer number (1042002).

Almost surely, 2^13469638 is an apocalyptic number.

13469638 is a deficient number, since it is larger than the sum of its proper divisors (11538410).

13469638 is a wasteful number, since it uses less digits than its factorization.

13469638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728 (or 5715 counting only the distinct ones).

The product of its digits is 93312, while the sum is 40.

The square root of 13469638 is about 3670.1005435819. The cubic root of 13469638 is about 237.9315176175.

The spelling of 13469638 in words is "thirteen million, four hundred sixty-nine thousand, six hundred thirty-eight".