13538436 has 24 divisors (see below), whose sum is σ = 31698240. Its totient is φ = 4497312.

The previous prime is 13538429. The next prime is 13538453. The reversal of 13538436 is 63483531.

It is a junction number, because it is equal to n+sod(n) for n = 13538397 and 13538406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2025 + ... + 5583.

It is an arithmetic number, because the mean of its divisors is an integer number (1320760).

Almost surely, 2^13538436 is an apocalyptic number.

It is an amenable number.

13538436 is an abundant number, since it is smaller than the sum of its proper divisors (18159804).

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

13538436 is a wasteful number, since it uses less digits than its factorization.

13538436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3883 (or 3881 counting only the distinct ones).

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

The square root of 13538436 is about 3679.4613736252. The cubic root of 13538436 is about 238.3359190335.

The spelling of 13538436 in words is "thirteen million, five hundred thirty-eight thousand, four hundred thirty-six".