28342792 has 8 divisors (see below), whose sum is σ = 53142750. Its totient is φ = 14171392.

The previous prime is 28342789. The next prime is 28342793. The reversal of 28342792 is 29724382.

It can be written as a sum of positive squares in only one way, i.e., 26770276 + 1572516 = 5174^2 + 1254^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28342793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1771417 + ... + 1771432.

Almost surely, 2^28342792 is an apocalyptic number.

It is an amenable number.

28342792 is a deficient number, since it is larger than the sum of its proper divisors (24799958).

28342792 is a wasteful number, since it uses less digits than its factorization.

28342792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3542855 (or 3542851 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 28342792 is about 5323.7948871083. The cubic root of 28342792 is about 304.8930629319.

The spelling of 28342792 in words is "twenty-eight million, three hundred forty-two thousand, seven hundred ninety-two".