28460212 has 12 divisors (see below), whose sum is σ = 54333216. Its totient is φ = 12936440.

The previous prime is 28460209. The next prime is 28460219. The reversal of 28460212 is 21206482.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28460219) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 323368 + ... + 323455.

It is an arithmetic number, because the mean of its divisors is an integer number (4527768).

Almost surely, 2^28460212 is an apocalyptic number.

28460212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28460212 is a deficient number, since it is larger than the sum of its proper divisors (25873004).

28460212 is a wasteful number, since it uses less digits than its factorization.

28460212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646838 (or 646836 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 28460212 is about 5334.8113368703. The cubic root of 28460212 is about 305.3135251330.

Adding to 28460212 its reverse (21206482), we get a palindrome (49666694).

The spelling of 28460212 in words is "twenty-eight million, four hundred sixty thousand, two hundred twelve".