13988242 has 4 divisors (see below), whose sum is σ = 20982366. Its totient is φ = 6994120.

The previous prime is 13988231. The next prime is 13988243. The reversal of 13988242 is 24288931.

13988242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10751841 + 3236401 = 3279^2 + 1799^2 .

It is not an unprimeable number, because it can be changed into a prime (13988243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3497059 + ... + 3497062.

Almost surely, 2^13988242 is an apocalyptic number.

13988242 is a deficient number, since it is larger than the sum of its proper divisors (6994124).

13988242 is an equidigital number, since it uses as much as digits as its factorization.

13988242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6994123.

The product of its digits is 27648, while the sum is 37.

The square root of 13988242 is about 3740.0858278922. The cubic root of 13988242 is about 240.9467350131.

The spelling of 13988242 in words is "thirteen million, nine hundred eighty-eight thousand, two hundred forty-two".