12428049 has 12 divisors (see below), whose sum is σ = 16791056. Its totient is φ = 8176608.

The previous prime is 12428047. The next prime is 12428051. The reversal of 12428049 is 94082421.

12428049 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12428047) and next prime (12428051).

It is not a de Polignac number, because 12428049 - 2¹ = 12428047 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12428047) 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, 23502 + ... + 24024.

Almost surely, 2^12428049 is an apocalyptic number.

It is an amenable number.

12428049 is a deficient number, since it is larger than the sum of its proper divisors (4363007).

12428049 is an frugal number, since it uses more digits than its factorization.

12428049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 12428049 is about 3525.3438130202. The cubic root of 12428049 is about 231.6332952869.

The spelling of 12428049 in words is "twelve million, four hundred twenty-eight thousand, forty-nine".