28450424 has 16 divisors (see below), whose sum is σ = 53466720. Its totient is φ = 14192640.

The previous prime is 28450423. The next prime is 28450493. The reversal of 28450424 is 42405482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28450423) 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 3 ways as a sum of consecutive naturals, for example, 137 + ... + 7544.

It is an arithmetic number, because the mean of its divisors is an integer number (3341670).

Almost surely, 2^28450424 is an apocalyptic number.

It is an amenable number.

28450424 is a deficient number, since it is larger than the sum of its proper divisors (25016296).

28450424 is a wasteful number, since it uses less digits than its factorization.

28450424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8150 (or 8146 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

The square root of 28450424 is about 5333.8938872085. The cubic root of 28450424 is about 305.2785201064.

The spelling of 28450424 in words is "twenty-eight million, four hundred fifty thousand, four hundred twenty-four".