13653438 has 32 divisors (see below), whose sum is σ = 28924800. Its totient is φ = 4284576.

The previous prime is 13653427. The next prime is 13653443. The reversal of 13653438 is 83435631.

It is a junction number, because it is equal to n+sod(n) for n = 13653399 and 13653408.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 25845 + ... + 26367.

It is an arithmetic number, because the mean of its divisors is an integer number (903900).

Almost surely, 2^13653438 is an apocalyptic number.

13653438 is an abundant number, since it is smaller than the sum of its proper divisors (15271362).

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

13653438 is a wasteful number, since it uses less digits than its factorization.

13653438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776.

The product of its digits is 25920, while the sum is 33.

The square root of 13653438 is about 3695.0558859103. The cubic root of 13653438 is about 239.0088638952.

The spelling of 13653438 in words is "thirteen million, six hundred fifty-three thousand, four hundred thirty-eight".