20028922 has 4 divisors (see below), whose sum is σ = 30043386. Its totient is φ = 10014460.

The previous prime is 20028919. The next prime is 20028971. The reversal of 20028922 is 22982002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22982002 = 2 ⋅11491001.

It can be written as a sum of positive squares in only one way, i.e., 16573041 + 3455881 = 4071^2 + 1859^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5007229 + ... + 5007232.

Almost surely, 2^20028922 is an apocalyptic number.

20028922 is a deficient number, since it is larger than the sum of its proper divisors (10014464).

20028922 is a wasteful number, since it uses less digits than its factorization.

20028922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10014463.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20028922 is about 4475.3683647271. The cubic root of 20028922 is about 271.5725426161.

The spelling of 20028922 in words is "twenty million, twenty-eight thousand, nine hundred twenty-two".