13424442 has 16 divisors (see below), whose sum is σ = 27021792. Its totient is φ = 4446000.

The previous prime is 13424429. The next prime is 13424443. The reversal of 13424442 is 24442431.

It is a happy number.

It is a super-2 number, since 2×13424442² = 360431286022728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13424443) 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, 6184 + ... + 8067.

It is an arithmetic number, because the mean of its divisors is an integer number (1688862).

Almost surely, 2^13424442 is an apocalyptic number.

13424442 is an abundant number, since it is smaller than the sum of its proper divisors (13597350).

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

13424442 is a wasteful number, since it uses less digits than its factorization.

13424442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14413.

The product of its digits is 3072, while the sum is 24.

The square root of 13424442 is about 3663.9380453277. The cubic root of 13424442 is about 237.6651010831.

Adding to 13424442 its reverse (24442431), we get a palindrome (37866873).

The spelling of 13424442 in words is "thirteen million, four hundred twenty-four thousand, four hundred forty-two".