28232296 has 8 divisors (see below), whose sum is σ = 52935570. Its totient is φ = 14116144.

The previous prime is 28232273. The next prime is 28232299. The reversal of 28232296 is 69223282.

It can be written as a sum of positive squares in only one way, i.e., 16080100 + 12152196 = 4010^2 + 3486^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28232299) 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, 1764511 + ... + 1764526.

Almost surely, 2^28232296 is an apocalyptic number.

It is an amenable number.

28232296 is a deficient number, since it is larger than the sum of its proper divisors (24703274).

28232296 is a wasteful number, since it uses less digits than its factorization.

28232296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3529043 (or 3529039 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 28232296 is about 5313.4071931295. The cubic root of 28232296 is about 304.4963325621.

It can be divided in two parts, 28 and 232296, that added together give a square (232324 = 482²).

The spelling of 28232296 in words is "twenty-eight million, two hundred thirty-two thousand, two hundred ninety-six".