20207422 has 8 divisors (see below), whose sum is σ = 30726576. Its totient is φ = 9965232.

The previous prime is 20207419. The next prime is 20207437. The reversal of 20207422 is 22470202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20207422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69058 + ... + 69349.

It is an arithmetic number, because the mean of its divisors is an integer number (3840822).

Almost surely, 2^20207422 is an apocalyptic number.

20207422 is a deficient number, since it is larger than the sum of its proper divisors (10519154).

20207422 is a wasteful number, since it uses less digits than its factorization.

20207422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138482.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 20207422 is about 4495.2666216811. The cubic root of 20207422 is about 272.3769194184.

Adding to 20207422 its reverse (22470202), we get a palindrome (42677624).

The spelling of 20207422 in words is "twenty million, two hundred seven thousand, four hundred twenty-two".