13538242 has 8 divisors (see below), whose sum is σ = 20508732. Its totient is φ = 6702000.

The previous prime is 13538233. The next prime is 13538269. The reversal of 13538242 is 24283531.

13538242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13476241 + 62001 = 3671^2 + 249^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13538242.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33309 + ... + 33712.

Almost surely, 2^13538242 is an apocalyptic number.

13538242 is a deficient number, since it is larger than the sum of its proper divisors (6970490).

13538242 is a wasteful number, since it uses less digits than its factorization.

13538242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67124.

The product of its digits is 5760, while the sum is 28.

The square root of 13538242 is about 3679.4350109765. The cubic root of 13538242 is about 238.3347806107.

It can be divided in two parts, 135382 and 42, that added together give a square (135424 = 368²).

The spelling of 13538242 in words is "thirteen million, five hundred thirty-eight thousand, two hundred forty-two".