28214824 has 32 divisors (see below), whose sum is σ = 57918240. Its totient is φ = 12779200.

The previous prime is 28214821. The next prime is 28214827. The reversal of 28214824 is 42841282.

It is an interprime number because it is at equal distance from previous prime (28214821) and next prime (28214827).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (28214821) 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 7 ways as a sum of consecutive naturals, for example, 42882 + ... + 43534.

It is an arithmetic number, because the mean of its divisors is an integer number (1809945).

Almost surely, 2^28214824 is an apocalyptic number.

It is an amenable number.

28214824 is an abundant number, since it is smaller than the sum of its proper divisors (29703416).

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

28214824 is a wasteful number, since it uses less digits than its factorization.

28214824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161 (or 1157 counting only the distinct ones).

The product of its digits is 8192, while the sum is 31.

The square root of 28214824 is about 5311.7627959087. The cubic root of 28214824 is about 304.4335054864.

The spelling of 28214824 in words is "twenty-eight million, two hundred fourteen thousand, eight hundred twenty-four".