28519422 has 16 divisors (see below), whose sum is σ = 57843072. Its totient is φ = 9372440.

The previous prime is 28519397. The next prime is 28519423. The reversal of 28519422 is 22491582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28519423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33048 + ... + 33899.

It is an arithmetic number, because the mean of its divisors is an integer number (3615192).

Almost surely, 2^28519422 is an apocalyptic number.

28519422 is an abundant number, since it is smaller than the sum of its proper divisors (29323650).

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

28519422 is a wasteful number, since it uses less digits than its factorization.

28519422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67023.

The product of its digits is 11520, while the sum is 33.

The square root of 28519422 is about 5340.3578531780. The cubic root of 28519422 is about 305.5251081409.

The spelling of 28519422 in words is "twenty-eight million, five hundred nineteen thousand, four hundred twenty-two".