12252340 has 36 divisors (see below), whose sum is σ = 27171396. Its totient is φ = 4640256.

The previous prime is 12252323. The next prime is 12252349. The reversal of 12252340 is 4325221.

It can be written as a sum of positive squares in 2 ways, for example, as 8785296 + 3467044 = 2964^2 + 1862^2 .

It is a super-3 number, since 3×12252340³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12252349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6372 + ... + 8068.

It is an arithmetic number, because the mean of its divisors is an integer number (754761).

Almost surely, 2^12252340 is an apocalyptic number.

12252340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12252340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13585698).

12252340 is an abundant number, since it is smaller than the sum of its proper divisors (14919056).

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

12252340 is a wasteful number, since it uses less digits than its factorization.

12252340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744 (or 1723 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 12252340 is about 3500.3342697520. The cubic root of 12252340 is about 230.5364917921.

Adding to 12252340 its reverse (4325221), we get a palindrome (16577561).

The spelling of 12252340 in words is "twelve million, two hundred fifty-two thousand, three hundred forty".