12028455 has 12 divisors (see below), whose sum is σ = 20849400. Its totient is φ = 6415152.

The previous prime is 12028451. The next prime is 12028481. The reversal of 12028455 is 55482021.

It is a happy number.

12028455 is a `hidden beast` number, since 1 + 202 + 8 + 455 = 666.

It is not a de Polignac number, because 12028455 - 2² = 12028451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12028451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133605 + ... + 133694.

It is an arithmetic number, because the mean of its divisors is an integer number (1737450).

Almost surely, 2^12028455 is an apocalyptic number.

12028455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12028455 is a deficient number, since it is larger than the sum of its proper divisors (8820945).

12028455 is a wasteful number, since it uses less digits than its factorization.

12028455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267310 (or 267307 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 12028455 is about 3468.2063087423. The cubic root of 12028455 is about 229.1236659080.

The spelling of 12028455 in words is "twelve million, twenty-eight thousand, four hundred fifty-five".