20396422 has 4 divisors (see below), whose sum is σ = 30594636. Its totient is φ = 10198210.

The previous prime is 20396401. The next prime is 20396459. The reversal of 20396422 is 22469302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22469302 = 2 ⋅11234651.

It is a congruent number.

It is an unprimeable number.

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, 5099104 + ... + 5099107.

It is an arithmetic number, because the mean of its divisors is an integer number (7648659).

Almost surely, 2^20396422 is an apocalyptic number.

20396422 is a deficient number, since it is larger than the sum of its proper divisors (10198214).

20396422 is a wasteful number, since it uses less digits than its factorization.

20396422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10198213.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 20396422 is about 4516.2398076276. The cubic root of 20396422 is about 273.2234659904.

The spelling of 20396422 in words is "twenty million, three hundred ninety-six thousand, four hundred twenty-two".