12290452 has 6 divisors (see below), whose sum is σ = 21508298. Its totient is φ = 6145224.

The previous prime is 12290437. The next prime is 12290459. The reversal of 12290452 is 25409221.

12290452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9036036 + 3254416 = 3006^2 + 1804^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12290459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1536303 + ... + 1536310.

Almost surely, 2^12290452 is an apocalyptic number.

It is an amenable number.

12290452 is a deficient number, since it is larger than the sum of its proper divisors (9217846).

12290452 is a wasteful number, since it uses less digits than its factorization.

12290452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3072617 (or 3072615 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 12290452 is about 3505.7740942622. The cubic root of 12290452 is about 230.7752791691.

Adding to 12290452 its reverse (25409221), we get a palindrome (37699673).

The spelling of 12290452 in words is "twelve million, two hundred ninety thousand, four hundred fifty-two".