12452238 has 16 divisors (see below), whose sum is σ = 27671760. Its totient is φ = 4150728.

The previous prime is 12452221. The next prime is 12452249. The reversal of 12452238 is 83225421.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115245 + ... + 115352.

It is an arithmetic number, because the mean of its divisors is an integer number (1729485).

Almost surely, 2^12452238 is an apocalyptic number.

12452238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12452238 is an abundant number, since it is smaller than the sum of its proper divisors (15219522).

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

12452238 is a wasteful number, since it uses less digits than its factorization.

12452238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230608 (or 230602 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 12452238 is about 3528.7728745273. The cubic root of 12452238 is about 231.7834756473.

Adding to 12452238 its reverse (83225421), we get a palindrome (95677659).

The spelling of 12452238 in words is "twelve million, four hundred fifty-two thousand, two hundred thirty-eight".