13557742 has 8 divisors (see below), whose sum is σ = 22185432. Its totient is φ = 6162600.

The previous prime is 13557727. The next prime is 13557749. The reversal of 13557742 is 24775531.

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

It is a junction number, because it is equal to n+sod(n) for n = 13557698 and 13557707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13557749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308109 + ... + 308152.

It is an arithmetic number, because the mean of its divisors is an integer number (2773179).

Almost surely, 2^13557742 is an apocalyptic number.

13557742 is a deficient number, since it is larger than the sum of its proper divisors (8627690).

13557742 is a wasteful number, since it uses less digits than its factorization.

13557742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616274.

The product of its digits is 29400, while the sum is 34.

The square root of 13557742 is about 3682.0839208253. The cubic root of 13557742 is about 238.4491553483.

It can be divided in two parts, 13 and 557742, that added together give a palindrome (557755).

The spelling of 13557742 in words is "thirteen million, five hundred fifty-seven thousand, seven hundred forty-two".