13424238 has 16 divisors (see below), whose sum is σ = 29831760. Its totient is φ = 4474728.

The previous prime is 13424231. The next prime is 13424263. The reversal of 13424238 is 83242431.

13424238 is a `hidden beast` number, since 1 + 3 + 424 + 238 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13424231) 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, 124245 + ... + 124352.

It is an arithmetic number, because the mean of its divisors is an integer number (1864485).

Almost surely, 2^13424238 is an apocalyptic number.

13424238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13424238 is an abundant number, since it is smaller than the sum of its proper divisors (16407522).

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

13424238 is a wasteful number, since it uses less digits than its factorization.

13424238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248608 (or 248602 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 13424238 is about 3663.9102063233. The cubic root of 13424238 is about 237.6638972112.

Adding to 13424238 its reverse (83242431), we get a palindrome (96666669).

It can be divided in two parts, 1342423 and 8, that added together give a palindrome (1342431).

The spelling of 13424238 in words is "thirteen million, four hundred twenty-four thousand, two hundred thirty-eight".