13499938 has 8 divisors (see below), whose sum is σ = 21441132. Its totient is φ = 6352896.

The previous prime is 13499933. The next prime is 13499939. The reversal of 13499938 is 83999431.

It can be written as a sum of positive squares in 2 ways, for example, as 13417569 + 82369 = 3663^2 + 287^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13499933) 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, 198495 + ... + 198562.

Almost surely, 2^13499938 is an apocalyptic number.

13499938 is a deficient number, since it is larger than the sum of its proper divisors (7941194).

13499938 is a wasteful number, since it uses less digits than its factorization.

13499938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397076.

The product of its digits is 209952, while the sum is 46.

The square root of 13499938 is about 3674.2261770337. The cubic root of 13499938 is about 238.1097932804.

The spelling of 13499938 in words is "thirteen million, four hundred ninety-nine thousand, nine hundred thirty-eight".