13823242 has 4 divisors (see below), whose sum is σ = 20734866. Its totient is φ = 6911620.

The previous prime is 13823231. The next prime is 13823269. The reversal of 13823242 is 24232831.

13823242 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., 11417641 + 2405601 = 3379^2 + 1551^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3455809 + ... + 3455812.

Almost surely, 2^13823242 is an apocalyptic number.

13823242 is a deficient number, since it is larger than the sum of its proper divisors (6911624).

13823242 is an equidigital number, since it uses as much as digits as its factorization.

13823242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6911623.

The product of its digits is 2304, while the sum is 25.

The square root of 13823242 is about 3717.9620761917. The cubic root of 13823242 is about 239.9956133457.

It can be divided in two parts, 1382 and 3242, that added together give a square (4624 = 68²).

The spelling of 13823242 in words is "thirteen million, eight hundred twenty-three thousand, two hundred forty-two".