28529542 has 4 divisors (see below), whose sum is σ = 42794316. Its totient is φ = 14264770.

The previous prime is 28529539. The next prime is 28529549. The reversal of 28529542 is 24592582.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28529549) 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 as a sum of consecutive naturals, namely, 7132384 + ... + 7132387.

It is an arithmetic number, because the mean of its divisors is an integer number (10698579).

Almost surely, 2^28529542 is an apocalyptic number.

28529542 is a deficient number, since it is larger than the sum of its proper divisors (14264774).

28529542 is a wasteful number, since it uses less digits than its factorization.

28529542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14264773.

The product of its digits is 57600, while the sum is 37.

The square root of 28529542 is about 5341.3052711861. The cubic root of 28529542 is about 305.5612419780.

The spelling of 28529542 in words is "twenty-eight million, five hundred twenty-nine thousand, five hundred forty-two".