28269922 has 4 divisors (see below), whose sum is σ = 42404886. Its totient is φ = 14134960.

The previous prime is 28269911. The next prime is 28269937. The reversal of 28269922 is 22996282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22996282 = 2 ⋅11498141.

It can be written as a sum of positive squares in only one way, i.e., 23030401 + 5239521 = 4799^2 + 2289^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7067479 + ... + 7067482.

Almost surely, 2^28269922 is an apocalyptic number.

28269922 is a deficient number, since it is larger than the sum of its proper divisors (14134964).

28269922 is a wasteful number, since it uses less digits than its factorization.

28269922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14134963.

The product of its digits is 62208, while the sum is 40.

The square root of 28269922 is about 5316.9466801916. The cubic root of 28269922 is about 304.6315428793.

The spelling of 28269922 in words is "twenty-eight million, two hundred sixty-nine thousand, nine hundred twenty-two".