28142792 has 32 divisors (see below), whose sum is σ = 55960320. Its totient is φ = 13245120.

The previous prime is 28142791. The next prime is 28142797. The reversal of 28142792 is 29724182.

It is not an unprimeable number, because it can be changed into a prime (28142791) 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 7 ways as a sum of consecutive naturals, for example, 7643 + ... + 10709.

It is an arithmetic number, because the mean of its divisors is an integer number (1748760).

Almost surely, 2^28142792 is an apocalyptic number.

It is an amenable number.

28142792 is a deficient number, since it is larger than the sum of its proper divisors (27817528).

28142792 is a wasteful number, since it uses less digits than its factorization.

28142792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141 (or 3137 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 28142792 is about 5304.9780395398. The cubic root of 28142792 is about 304.1742133946.

The spelling of 28142792 in words is "twenty-eight million, one hundred forty-two thousand, seven hundred ninety-two".