13998738 has 16 divisors (see below), whose sum is σ = 30151296. Its totient is φ = 4307280.

The previous prime is 13998737. The next prime is 13998773. The reversal of 13998738 is 83789931.

13998738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13998737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89658 + ... + 89813.

It is an arithmetic number, because the mean of its divisors is an integer number (1884456).

Almost surely, 2^13998738 is an apocalyptic number.

13998738 is an abundant number, since it is smaller than the sum of its proper divisors (16152558).

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

13998738 is a wasteful number, since it uses less digits than its factorization.

13998738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179489.

The product of its digits is 326592, while the sum is 48.

The square root of 13998738 is about 3741.4887411297. The cubic root of 13998738 is about 241.0069842962.

The spelling of 13998738 in words is "thirteen million, nine hundred ninety-eight thousand, seven hundred thirty-eight".